problem with views module...warning: Parameter 3 to views_ui_build_form_state() expected to be a reference, value given...

Not sure that I'm posting this on the right forum page; if not, I apologize and ask for further advice where to post it.

When trying to change Style option on Views->Block->Basic Settings to "HTML list", I'm getting this message:

* warning: Parameter 3 to views_ui_build_form_state() expected to be a reference, value given in C:\wamp\www\views_school\sites\all\modules\views\includes\admin.inc on line 1606.

* warning: call_user_func_array() expects parameter 1 to be a valid callback, no array or string given in C:\wamp\www\views_school\includes\form.inc on line 376.

* warning: Invalid argument supplied for foreach() in C:\wamp\www\views_school\sites\all\modules\views\includes\admin.inc on line 1542.

* warning: Attempt to assign property of non-object in C:\wamp\www\views_school\sites\all\modules\views\includes\admin.inc on line 1613.

running on WAMP 2.0
- Apache 2.2.11
- MySQL 5.1.36
- PHP 5.3.0