Thumbnails not appearing in Fractal Galleries

[stardust4ever]

Sorry, I didn't know where else to put this; it's not a program issue but a website issue. I recently added some pictures to the Spring 2010 contest gallery, and several of my thumbnails didn't show up. I have kept within the upload rules by keeping my images at 1200 pixels or less, JPG or PNG format, and have stayed well under the 1Mb file-size limit. I also have only posted 3 or less images per contest as stated in the rules. I use Adobe Photoshop CS2 to save the Jpegs, usually in progressive display as this generally decreases the file size a little and eases viewing on slow connections.

Please help!

[cKleinhuis]

it seems that your jpgs are in a wrong format, i just opened them in irfanview,saved them, and uploaded them again, then it is working
i do not really know what is going on