From what I know, 9200 has some issues with win7..
Here are some cooked up instructions from the web:
1. Install the Win2K Drivers instead! (but not the software)(throw on compatibility mode Xp-SP2)
2. Do not restart Computer when asked, instead remove ati2dvrag.dll from system32 folder… put it on your desktop or something.
3. Logoff computer… Graphics will look like hell… log back in and return ati2dvrag.dll to system32 folder.
4. Logoff computer again… Graphics will reset and look great again!
5. Restart Computer
6. When computer restarts, check all setting to make sure your monitor displays properly and the way you like.
7. Shutdown computer again to test
If all else fails, check the ati radeon site and try driver per driver.. for the rest you're on your own, since i'm no tech support.