I experienced the same problem last night when I tried to use Amazon on Demand, similar to this thread:

http://ubuntuforums.org/showthread.p...+demand&page=5

When the video was purchased, the video was stuck on the "loading" screen and never played.

I am using the newest FF browser, with the Flash Aid plug-in, and the 64-bit version of Flash 11 Beta. Youtube and other movie-type websites are not problematic. Also, I'm running Ubuntu 11.10.

I tried to play through the Chromium browser, with the same results.

On a side note, I ended up booting into Windows7 and watching the movie on the Chrome
browser without a hitch. I'd rather not have to boot into Windows.

Any help would be appreciated. Thanks.