There is no problem with Aero Glass + OpenGL. It is just emulated if not in fullscreen ie not adviceable at all.
But in the end: With Aero Glass anything 3D in window is not really adviceable unless you own a 256MB VRAM graphicscard (while 64MB is more than enough if you are in fullscreen!)
But in the end: With Aero Glass anything 3D in window is not really adviceable unless you own a 256MB VRAM graphicscard (while 64MB is more than enough if you are in fullscreen!)