Vue is pretty flakey about Open GL in my experience. I have tried 3 different video cards since I've had Vue 4 and none would work with it. The first two (An ATI something-or-other that was so rubbbish I took it back, and a Geforce 2 MX) did exactly as you described. I now have a Geforce 3, and although it doesn't crash outright, if I move elements around, it doesn't refresh the window views, so I just end up with trails of lines and meshes all over the place until it eventually obscures the scene. Hence I have never had the benefit of using Open GL with Vue.