Hi Martin:
Yes, we have experienced this. We have yet to iron out all of the caveats with respect to VMs, DirectX and OpenGL. So at this point in time, it is risky.
If your VM is able to use hardware acceleration, it�??s okay to use.
However, it seems that most VMs do not support hardware acceleration.
The one�??s that do have ways of actually using a graphics card.
Some VMs have DirectX support.
Almost no VMs in the world support OpenGL.
If by chance you can find a VM that supports OpenGL, you should be ok.
I hope this is helpful information!