That looks like a display driver issue. Make sure you use recent display drivers. At the moment Nvidia is the best choice, AMD is also getting better and on the open source side most drivers are still slow, buggy and don't implement recent 3D stuff.
That looks like a display driver issue. Make sure you use recent display drivers. At the moment Nvidia is the best choice, AMD is also getting better and on the open source side most drivers are still slow, buggy and don't implement recent 3D stuff.