I build svn head version of CS with VS2008 in WinXP, neally all demos (except appceguitest ) turned out to be only a black window.
Seems that only 2D drawing is working, as appceguitest and partical system in some scene are shown. The buffer is not cleared and the screen are massed up with lots of particle and windows.
My graphic card: Quadro 135M
Do you have recent OpenGL drivers from www.nvidia.com?