Form views_ui_add_item_form is empty for arguments, fields, and filters.

Drupal: v6.2
Views: v2 beta3
Server: Apache 2.2.6 for Windows

I am unable to get anything besides submit buttons for the form: views-ui-config-item-form

1) Add new view
2) Click to add an argument, a field, or a filter. I'll do 'filter' for this example.
3) Select "Node: Type" (they are all the same though)
4) The configuration page is blank - except for "Expose", "Update", "Cancel", and "Remove

I can reproduce this with Javascript on and off.

With Javascript enabled, here is the POST and result info from Firebug (this is an attempt to add the Node:Type filter):

POST:

form_build_id	form-ef6fe114e92b6b53a72f6ea993ef91c6
form_id	views_ui_add_item_form
form_token	5a8b04930e31b1c6618ead97f48c3379
group	node
name[node.type]	node.type
op	Add

RESULT:

{ "display": "\x3cform action=\"/runningrocks/admin/build/views/ajax/add-item/test/default/filter\"  accept-charset=\"UTF-8\" method=\"post\" id=\"views-ui-config-item-form\"\x3e\n\x3cdiv\x3e\x3cinput type=\"submit\" name=\"op\" id=\"edit-options-expose-button-button\" value=\"Expose\"  class=\"form-submit\" /\x3e\n\x3cdiv class=\"clear-block\"\x3e\x3cdiv class=\"form-buttons\"\x3e\x3cinput type=\"submit\" name=\"op\" id=\"edit-submit\" value=\"Update\"  class=\"form-submit\" /\x3e\n\x3cinput type=\"submit\" name=\"op\" id=\"edit-cancel\" value=\"Cancel\"  class=\"form-submit\" /\x3e\n\x3cinput type=\"submit\" name=\"op\" id=\"edit-remove\" value=\"Remove\"  class=\"form-submit\" /\x3e\n\x3c/div\x3e\x3c/div\x3e\x3cinput type=\"hidden\" name=\"form_build_id\" id=\"form-143e6416b5b5461d921a47c276063d07\" value=\"form-143e6416b5b5461d921a47c276063d07\"  /\x3e\n\x3cinput type=\"hidden\" name=\"form_token\" id=\"edit-views-ui-config-item-form-form-token\" value=\"3ea26c7f4585a786adba517bbb569435\"  /\x3e\n\x3cinput type=\"hidden\" name=\"form_id\" id=\"edit-views-ui-config-item-form\" value=\"views_ui_config_item_form\"  /\x3e\n\n\x3c/div\x3e\x3c/form\x3e\n", "title": "Defaults: Configure filter \"Node: Type\"", "url": "/runningrocks/admin/build/views/ajax/config-item/test/default/filter/type", "js": null, "hilite": ".views-item-default-filter-type", "replace": { "#views-tab-default": "\x3cdiv class=\"clear-block views-display views-display-default\"\x3e\r\n      \x3cdiv class=\"top\"\x3e\r\n    \x3cdiv class=\"inside\"\x3e\r\n            \x3cspan class=\"display-title\"\x3e\r\n        Defaults      \x3c/span\x3e\r\n      \x3cspan class=\"display-description\"\x3e\r\n        Default settings for this view.      \x3c/span\x3e\r\n    \x3c/div\x3e\r\n  \x3c/div\x3e\r\n\r\n    \x3cdiv class=\"left tab-section\"\x3e\r\n    \x3cdiv class=\"inside\"\x3e\r\n                    \x3cdiv class=\"views-category\"\x3e\r\n          \x3cdiv class=\"views-category-title\"\x3eView settings\x3c/div\x3e\r\n          \x3cdiv class=\"views-category-content\"\x3e\r\n            \x3cdiv class=\"\"\x3e\r\n              Tag: \x3ca href=\"/runningrocks/admin/build/views/nojs/details/test\" class=\"views-ajax-link\"\x3eNone\x3c/a\x3e            \x3c/div\x3e\r\n          \x3c/div\x3e\r\n        \x3c/div\x3e\r\n      \r\n              \x3cdiv class=\"views-category\"\x3e\r\n          \x3cdiv class=\"views-category-title views-category-basic\"\x3e\r\n            Basic settings          \x3c/div\x3e\r\n          \x3cdiv class=\"views-category-content\"\x3e\r\n                          \x3cdiv class=\"views-item-default-display-title\"\x3e\r\n                Name: \x3ca href=\"/runningrocks/admin/build/views/nojs/display/test/default/display_title\" class=\"views-ajax-link \" title=\"Change the name of this display.\"\x3eDefaults\x3c/a\x3e              \x3c/div\x3e\r\n                          \x3cdiv class=\"views-item-default-title\"\x3e\r\n                Title: \x3ca href=\"/runningrocks/admin/build/views/nojs/display/test/default/title\" class=\"views-ajax-link \" title=\"Change the title that this display will use.\"\x3eNone\x3c/a\x3e              \x3c/div\x3e\r\n                          \x3cdiv class=\"views-item-default-style-plugin\"\x3e\r\n                \x3ca href=\"/runningrocks/admin/build/views/nojs/display/test/default/style_options\" class=\"views-ajax-link views-button-configure\" title=\"Change settings for this style\"\x3e\x3cspan\x3eChange settings for this style\x3c/span\x3e\x3c/a\x3eStyle: \x3ca href=\"/runningrocks/admin/build/views/nojs/display/test/default/style_plugin\" class=\"views-ajax-link \" title=\"Change the style plugin.\"\x3eUnformatted\x3c/a\x3e              \x3c/div\x3e\r\n                          \x3cdiv class=\"views-item-default-row-plugin\"\x3e\r\n                \x3ca href=\"/runningrocks/admin/build/views/nojs/display/test/default/row_options\" class=\"views-ajax-link views-button-configure\" title=\"Change settings for this style\"\x3e\x3cspan\x3eChange settings for this style\x3c/span\x3e\x3c/a\x3eRow style: \x3ca href=\"/runningrocks/admin/build/views/nojs/display/test/default/row_plugin\" class=\"views-ajax-link \" title=\"Change the row plugin.\"\x3eFields\x3c/a\x3e              \x3c/div\x3e\r\n                          \x3cdiv class=\"views-item-default-use-ajax\"\x3e\r\n                Use AJAX: \x3ca href=\"/runningrocks/admin/build/views/nojs/display/test/default/use_ajax\" class=\"views-ajax-link \" title=\"Change whether or not this display will use AJAX.\"\x3eNo\x3c/a\x3e              \x3c/div\x3e\r\n                          \x3cdiv class=\"views-item-default-use-pager\"\x3e\r\n                Use pager: \x3ca href=\"/runningrocks/admin/build/views/nojs/display/test/default/use_pager\" class=\"views-ajax-link \" title=\"Change this display\x26#039;s pager setting.\"\x3eNo\x3c/a\x3e              \x3c/div\x3e\r\n                          \x3cdiv class=\"views-item-default-items-per-page\"\x3e\r\n                Items to display: \x3ca href=\"/runningrocks/admin/build/views/nojs/display/test/default/items_per_page\" class=\"views-ajax-link \" title=\"Change how many items to display.\"\x3e10\x3c/a\x3e              \x3c/div\x3e\r\n                          \x3cdiv class=\"views-item-default-use-more\"\x3e\r\n                More link: \x3ca href=\"/runningrocks/admin/build/views/nojs/display/test/default/use_more\" class=\"views-ajax-link \" title=\"Specify whether this display will provide a \x26quot;more\x26quot; link.\"\x3eNo\x3c/a\x3e              \x3c/div\x3e\r\n                          \x3cdiv class=\"views-item-default-distinct\"\x3e\r\n                Distinct: \x3ca href=\"/runningrocks/admin/build/views/nojs/display/test/default/distinct\" class=\"views-ajax-link \" title=\"Display only distinct items, without duplicates.\"\x3eNo\x3c/a\x3e              \x3c/div\x3e\r\n                          \x3cdiv class=\"views-item-default-access\"\x3e\r\n                Access: \x3ca href=\"/runningrocks/admin/build/views/nojs/display/test/default/access\" class=\"views-ajax-link \" title=\"Specify access control settings for this display.\"\x3eUnrestricted\x3c/a\x3e              \x3c/div\x3e\r\n                          \x3cdiv class=\"views-item-default-header\"\x3e\r\n                Header: \x3ca href=\"/runningrocks/admin/build/views/nojs/display/test/default/header\" class=\"views-ajax-link \" title=\"Change this display\x26#039;s header.\"\x3eNone\x3c/a\x3e              \x3c/div\x3e\r\n                          \x3cdiv class=\"views-item-default-footer\"\x3e\r\n                Footer: \x3ca href=\"/runningrocks/admin/build/views/nojs/display/test/default/footer\" class=\"views-ajax-link \" title=\"Change this display\x26#039;s footer.\"\x3eNone\x3c/a\x3e              \x3c/div\x3e\r\n                          \x3cdiv class=\"views-item-default-empty\"\x3e\r\n                Empty text: \x3ca href=\"/runningrocks/admin/build/views/nojs/display/test/default/empty\" class=\"views-ajax-link \" title=\"Change this display\x26#039;s empty text.\"\x3eNone\x3c/a\x3e              \x3c/div\x3e\r\n                          \x3cdiv class=\"views-item-default-analyze-theme\"\x3e\r\n                Theme: \x3ca href=\"/runningrocks/admin/build/views/nojs/display/test/default/analyze-theme\" class=\"views-ajax-link \" title=\"Get information on how to theme this display\"\x3eInformation\x3c/a\x3e              \x3c/div\x3e\r\n                      \x3c/div\x3e\r\n        \x3c/div\x3e\r\n          \x3c/div\x3e\r\n  \x3c/div\x3e\r\n\r\n    \x3cdiv class=\"middle tab-section\"\x3e\r\n    \x3cdiv class=\"inside\"\x3e\r\n      \x3cdiv class=\"views-category\"\x3e\r\n        \x3ca href=\"/runningrocks/admin/build/views/nojs/rearrange/test/default/relationship\" class=\"views-button-rearrange views-ajax-link\" title=\"Rearrange\"\x3e\x3cspan\x3eRearrange\x3c/span\x3e\x3c/a\x3e\x3ca href=\"/runningrocks/admin/build/views/nojs/add-item/test/default/relationship\" class=\"views-button-add views-ajax-link\" title=\"Add\"\x3e\x3cspan\x3eAdd\x3c/span\x3e\x3c/a\x3e\x3cdiv class=\"views-category-title\"\x3e\r\n    \x3ca href=\"/runningrocks/admin/build/views/nojs/config-type/test/default/relationship\" class=\"views-ajax-link\"\x3eRelationships\x3c/a\x3e\x3c/div\x3e\r\n\r\n\x3cdiv class=\"views-category-content\"\x3e\r\n      \x3cdiv\x3eNone defined\x3c/div\x3e\r\n  \x3c/div\x3e\r\n      \x3c/div\x3e\r\n      \x3cdiv class=\"views-category\"\x3e\r\n        \x3ca href=\"/runningrocks/admin/build/views/nojs/rearrange/test/default/argument\" class=\"views-button-rearrange views-ajax-link\" title=\"Rearrange\"\x3e\x3cspan\x3eRearrange\x3c/span\x3e\x3c/a\x3e\x3ca href=\"/runningrocks/admin/build/views/nojs/add-item/test/default/argument\" class=\"views-button-add views-ajax-link\" title=\"Add\"\x3e\x3cspan\x3eAdd\x3c/span\x3e\x3c/a\x3e\x3cdiv class=\"views-category-title\"\x3e\r\n    \x3ca href=\"/runningrocks/admin/build/views/nojs/config-type/test/default/argument\" class=\"views-ajax-link\"\x3eArguments\x3c/a\x3e\x3c/div\x3e\r\n\r\n\x3cdiv class=\"views-category-content\"\x3e\r\n      \x3cdiv\x3eNone defined\x3c/div\x3e\r\n  \x3c/div\x3e\r\n      \x3c/div\x3e\r\n              \x3cdiv class=\"views-category\"\x3e\r\n          \x3ca href=\"/runningrocks/admin/build/views/nojs/rearrange/test/default/field\" class=\"views-button-rearrange views-ajax-link\" title=\"Rearrange\"\x3e\x3cspan\x3eRearrange\x3c/span\x3e\x3c/a\x3e\x3ca href=\"/runningrocks/admin/build/views/nojs/add-item/test/default/field\" class=\"views-button-add views-ajax-link\" title=\"Add\"\x3e\x3cspan\x3eAdd\x3c/span\x3e\x3c/a\x3e\x3cdiv class=\"views-category-title\"\x3e\r\n    \x3ca href=\"/runningrocks/admin/build/views/nojs/config-type/test/default/field\" class=\"views-ajax-link\"\x3eFields\x3c/a\x3e\x3c/div\x3e\r\n\r\n\x3cdiv class=\"views-category-content\"\x3e\r\n      \x3cdiv\x3eNone defined\x3c/div\x3e\r\n  \x3c/div\x3e\r\n        \x3c/div\x3e\r\n          \x3c/div\x3e\r\n  \x3c/div\x3e\r\n\r\n    \x3cdiv class=\"right tab-section\"\x3e\r\n    \x3cdiv class=\"inside\"\x3e\r\n      \x3cdiv class=\"views-category\"\x3e\r\n        \x3ca href=\"/runningrocks/admin/build/views/nojs/rearrange/test/default/sort\" class=\"views-button-rearrange views-ajax-link\" title=\"Rearrange\"\x3e\x3cspan\x3eRearrange\x3c/span\x3e\x3c/a\x3e\x3ca href=\"/runningrocks/admin/build/views/nojs/add-item/test/default/sort\" class=\"views-button-add views-ajax-link\" title=\"Add\"\x3e\x3cspan\x3eAdd\x3c/span\x3e\x3c/a\x3e\x3cdiv class=\"views-category-title\"\x3e\r\n    \x3ca href=\"/runningrocks/admin/build/views/nojs/config-type/test/default/sort\" class=\"views-ajax-link\"\x3eSort criteria\x3c/a\x3e\x3c/div\x3e\r\n\r\n\x3cdiv class=\"views-category-content\"\x3e\r\n      \x3cdiv\x3eNone defined\x3c/div\x3e\r\n  \x3c/div\x3e\r\n      \x3c/div\x3e\r\n      \x3cdiv class=\"views-category\"\x3e\r\n        \x3ca href=\"/runningrocks/admin/build/views/nojs/rearrange/test/default/filter\" class=\"views-button-rearrange views-ajax-link\" title=\"Rearrange\"\x3e\x3cspan\x3eRearrange\x3c/span\x3e\x3c/a\x3e\x3ca href=\"/runningrocks/admin/build/views/nojs/add-item/test/default/filter\" class=\"views-button-add views-ajax-link\" title=\"Add\"\x3e\x3cspan\x3eAdd\x3c/span\x3e\x3c/a\x3e\x3cdiv class=\"views-category-title\"\x3e\r\n    \x3ca href=\"/runningrocks/admin/build/views/nojs/config-type/test/default/filter\" class=\"views-ajax-link\"\x3eFilters\x3c/a\x3e\x3c/div\x3e\r\n\r\n\x3cdiv class=\"views-category-content\"\x3e\r\n                  \x3cdiv class=\"views-item-default-filter-type\"\x3e\r\n        \x3ca href=\"/runningrocks/admin/build/views/nojs/config-item/test/default/filter/type\" class=\"views-ajax-link\"\x3eNode: Type\x3c/a\x3e        in       \x3c/div\x3e\r\n      \x3c/div\x3e\r\n      \x3c/div\x3e\r\n    \x3c/div\x3e\r\n  \x3c/div\x3e\r\n\r\n\x3c/div\x3e", "#views-tab-title-default": "Defaults" }, "changed": true }

With Javascript turned off, here is the form that is returned for me:

<form action="/admin/build/views/nojs/config-item/testy/default/filter/type_1"  accept-charset="UTF-8" method="post" id="views-ui-config-item-form">
<div>
<input type="submit" name="op" id="edit-options-expose-button-button" value="Expose"  class="form-submit" />
<div class="clear-block">
<div class="form-buttons">
<input type="submit" name="op" id="edit-submit" value="Update"  class="form-submit" />
<input type="submit" name="op" id="edit-cancel" value="Cancel"  class="form-submit" />
<input type="submit" name="op" id="edit-remove" value="Remove"  class="form-submit" />
</div>
</div>
<input type="hidden" name="form_build_id" id="form-37b8fea1f8518b422aefad19a07be67f" value="form-37b8fea1f8518b422aefad19a07be67f"  />
<input type="hidden" name="form_token" id="edit-views-ui-config-item-form-form-token" value="3ea26c7f4585a786adba517bbb569435"  />
<input type="hidden" name="form_id" id="edit-views-ui-config-item-form" value="views_ui_config_item_form"  />
</div>
</form>