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I have been experiencing an issue since I've up upgraded to Windows 7 where all flash videos have horrible frame rates when run in full screen mode. I have tried multiple browsers and i have the latest version of flash and video drivers. I have tried re-installing flash and disabling hardware acceleration. The problem occurs on youtube and hulu.

This is a clean install on a Core 2 duo with 4GB RAM and an Nvidia 8400M GS.

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Are you using the debug version of the Flash player? Just something to check. – Tmdean Nov 7 '09 at 20:03

Okay, I think I've got this figured out. I thought it might have had something to do with Aero being on because it started working fine when I disabled it. However, I have been able to reproduce it by messing with the hardware acceleration feature.

I think the fix is indeed to disable hardware acceleration. I didn't see any change at first, but when I reloaded the page (F5, or CTRL+F5 for full reload) it started working.

The fix:

  1. Take the flash video out of full screen.
  2. Right click on the video and select 'Settings'
  3. In the 'Display' tab, un-check the 'Enable hardware acceleration' check-box.
  4. Refresh the page.
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Go to nvidia site and download the drivers compatible with windows 7 , don't just update them. My computer used to have the same trouble when i used full screen and then it restarted. The new drivers fixed the problem. Hope i helped a little

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