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#11
The only way I set the Flash hardware acceleration is by right clicking on the movie and in the settings box that comes up, click the tab for the video and you'll see a check box setting for it. Uncheck it. Close the box. Make sure your browser is not auto deleting the flash cookie or the setting will not stick. Then restart the browser, clear only the cache. Go back to where you were trying to watch the movie, and it should now play, if that was the problem.
There is one other thing you can try. There are programs like Riva Tuner, which is free. It's a video card tuning program that will let you set all the acceleration settings, as well as, your colors and stuff. Just make a system restore backup before trying it. It's a great program, I've used it for stuff. You can get it off Guru3D.com They may also have other utilities you can try. That site is a goldmine of video things.