Hi everybody, I am using a Lenovo Thinkpad T400 with ATI Mobility Raedon 3400 series graphics card. Windows 7 installs WDDM 1.1 prerelease as graphics driver component. Everything works fine. But when I run to check Windows experience index score of my machine..the flash screen hangs and nothing happens even if I leave it for a hour! I suspect it to be related to graphics and troubleshooting hints the same.Any suggestions?Thanks.

Have you tried to install the beta drivers from ATI (through Windows Update?) And are you using thex86 or thex64 version of Windows 7?

ya, I updated to that version. Still the same issue!!! everything is up-to-date in my system.

You might want to try to install one of the drivers from here: http://support.ati.com/ics/support/default.asp?deptID=894&task=knowledge&questionID=39069 .I don't know if they are different, but the guys in the ATI forums seem to think that they work, plus I think it has the Catalyst Control Center in it as well

thanks..I tried installing x64 version on my win 7 64bit , but it wont. It shows installation progress till some point and then hangs forever. Any other inputs?

Since your question or comment has gone unanswered for so long, you can send your report on theproblem to the development team in this thread. Have Comments about Windows 7 BetaRating posts helps other users Mark L. Ferguson MS-MVP