The comment attach module is great, and when used with imagecache the list of display options for images shows all imagecache presets as you would expect.

However, when jLightbox is also installed one would also expect options for using that to appear. This is what happens when one has these modules installed when configuring views.

Eg. suppose you have 'preview' and 'tiny' as imagecache presets and also jLightbox installed.

Views gives you these options for viewing image fields:

preview
tiny
jLightbox: preview
jLightbox: preview gallery
jLightbox: tiny
jLightbox: tiny gallery

Only the top two appear with comment upload though (eg. the module has no knowledge of jLightbox).