I have found that my W2K behaves weirdly within my W2K OGL application. It’s seems that the mouse pointer is creating update blockout regions in windows under certain circumstances.
I have never seen this on any other windows release (though I haven’t used ME) and my guess is that it is because of the pointer shadow in W2K.
I’ve seen it, also mine Win2K does strange things with mouse shadows.
Another thing I saw (I’m not sure it a Win2k fault) is :
I’m loading some 16colours textures saved in a file as resources, if I load 'em on Win95/98/NT/ME they are shown with right colours, on Win2K some of the colours are changed…
If you are having problems with the alpha cursor and OpenGL, that’s definitely a driver bug. Older HW that doesn’t support alpha cursors will probably have to fall back to a SW cursor or non-alpha cursor when you run OpenGL, and some drivers may implement that incorrectly.