Does anyone have a working ATI OpenGL driver DLL?

Try following:

  1. Start regedit (Start->Run-> and write “regedit”)
  2. Find key “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\OpenGLDrivers\ati2dvag”
  3. Change DLL value from “atioglxx.dll” to “atioglx2.dll”

It seems like that ATI driver update installs wrong OpenGL driver for (9800/X800/?) AGP cards. Changing registry value solves this problem.

This solution is coming from: OpenGL programs will not start by “tcowher”