Ah, so if he runs windows update it should offer them?
Windows update would not offer the drivers because it is unsupported.
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I have ATI Radeon 9200 as well. Here's how I fixed the driver problem when I upgraded to Windows 7:
QUOTE1) Download the Windows 2000 Driver for the Card from the ATI Website. Use option 2 (Driver Only).
2) Once the download has completed, simply right click it, click properties and run it in Compatibility mode for Windows XP Service Pack 2, also tick Run as Administrator.
3) After applying the settings, run the download. Let it extract, and then allow the Installation to complete, however decline the option to restart immediately.
4) Now, go to the System32 Folder and cut the ati2dvag.dll to your desktop.
5) Log out, and log back in. By this point, your graphics will look terrible and you'll be cursing me but have faith!
6) Take the ati2dvag.dll and paste it back into the System32 folder.
7) Restart your PC.