I've just put in a new graphics card HD4850 (with latest drivers) and whenever I try to play Youtube videos in full screen with hardware acceleration enabled the video doesn't display (only residual artifacts remain - like when I move my mouse across the time bar the times will remain on the screen, it's almost as if the screen doesn't refresh at all) but the sound works.
Of course, I can watch videos with hardware acceleration disabled, but the quality sucks. The most annoying thing is that my previous card (ancient Radeon X550) that I've just removed was able to play hardware accelerated full screen videos without a problem.
If anyone can identify the cause, I'd appreciate it.
Cheers
Screenshot of the problem:
http://i.imgur.com/tH5N6.png
My specs:
Windows XP Pro SP3 32-bit
Mozilla Firefox v10.0
ATI CCC v12.1
Flash v11.1
Of course, I can watch videos with hardware acceleration disabled, but the quality sucks. The most annoying thing is that my previous card (ancient Radeon X550) that I've just removed was able to play hardware accelerated full screen videos without a problem.
If anyone can identify the cause, I'd appreciate it.
Cheers
Screenshot of the problem:
http://i.imgur.com/tH5N6.png
My specs:
Windows XP Pro SP3 32-bit
Mozilla Firefox v10.0
ATI CCC v12.1
Flash v11.1