Full screen flash lags on Windows 7

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.