No joy with OpenGL for me either.
And I can already tell you that this is definitely not, for me at least, a hardware issue. One of my Windows installs on this precise machine had no problems whatsoever. that hard drive has since corrupted, so I've done a "clean" install on another hard drive, and now I'm having the problem again. It has to be a software thing... But I really haven't installed that much software...
Unless it's an optional something from Windows Update? Hmm... Other than that I've installed Steam & games, X-Fire, Winamp, Windows Media Player Classic, Irfanview, Catalyst Control center (I doubt it's the video drivers, I've gone through so many permutations of them in testing...), Google toolbar, Project Visitor, Rollercoaster Tycoon, DotNet 1.1 and 2.0, Flash 8, TightVNC (Ooh... I wonder... I'll try that one next.), Windows Media PLayer 9, WinRAR, SoundMAX drivers & control panel, and DirectX 9.0c.
So. Any of that look suspicious?