Thumbnail won't be shown anymore?

can you post a link to that page

http://vanityworld.lefora.com/forum/category/general/page1/

Note: I did some test on it.
Thumbnails can't be shown under 2 situations:
1) if u use "upload files" method (ie by attachment) or
2)those articles  were posted after  29th April 2009; for those articles posted before that date are totally ok )

After 29th April 2009,thumbnails can be shown only if embed the picture by the "insert image" method

Continue: for those articles posted before 29th April 2009, thumbnails can be shown when the uploaded files are named as .jpg.    Whereas no thumbnail for those uploaded files named as .JPG

thanks for that testing near.  We're making some changes to our imaging system, and some thumbnails may need to be rebuilt and we'll make sure everything is fine going forward.