[Vista] Menu freeze

[MHaggag]

Seems like Vista ATI drivers do not work very well with OpenGL.

Not only ATi, but Intel too--I was testing an OpenGL application we use at work on my laptop, and found out that it freezes the DWM somehow, which in turn freezes explorer itself. Had to disable DWM manually at application startup to make it work.

Disabling the DWM didn't help with Penumbra, though. I'll just live with it as it currently is.