Whenever I try to get my WEI I get this error:
Could not measure video playback performance.
At first I had the MS provided drivers for my ATI X series card so I went to AMD to get new drivers and indeed, I have the ATI drivers now and I get the same error.
Reading around the google results I got a suggestion to turn off Aero and that didn't work either.
That said video from youtube works great! And so do the sample videos in Windows Media Player.
It's a brand new install of Windows 7 and all I did was allow updates and install a couple of browsers.
Best Answer
A few suggestions:
Update graphics driversUpdate DirectX
Check you have sufficent HD space (I believe the WEI tests require temp file space).
Adjust the hardware acceleration setting (found in Control Panel -> Appearance and Personalization -> Personalization -> Display Settings -> Advanced -> Troubleshoot).