Topic: large photo not available on FireFox 2.0

I have set up a gallery. The thumbnails appear, but no photo in Firefox though it works fine in Safari and IE 7

I used the php download of the application. It would not display gallery.xml only imageData.xml.

My settings on imageData.xml are
<?xml version="1.0" encoding="UTF-8"?>
<SIMPLEVIEWER_DATA maxImageDimension="640" textColor="0x000000" frameColor="0x000000" bgColor="0xFFFFFF" frameWidth="10" stagePadding="10" thumbnailColumns="9" thumbnailRows="2" navPosition="top" navDirection="LTR" title="" imagePath="" thumbPath="">

Any ideas? Basically the thumbnails show up, the arrow shows up, but the page is short, like the rest of the application is hidden, but I can't figure out where it might be getting the short dimension for only one browser. I have tried the thumbnails on the bottom and get the same no photo/short box results.

Thank you for your help in advance.