Cant' upload images to VPHOT using Ubuntu with Firefox or Chrome

I can't seem to upload images using Ubuntu 11.10. I select Upload/Quick Upload/Choose Telescope
then when I click on the Select Images to Upload box, it dissapears and nothing happens. The choose file menu never opens. This happens in both
Firefox and Chrome. If I try to use the Upload Wizard, I never get a select test image box either. Thanks for your help
I suspect this is either a java some other browser extension problem.

Jeff.