I don't seem to have as many problems with fglrx as most people. The video tearing is annoying but I can live with it until the open driver supports 3D. The one problem that really bugs me is that logging out or trying to restart X in any way sends the card into a spasm. The display freezes, the graphics fan starts going full pelt and the only thing I can do is hit the power button, which at least shuts down the machine cleanly. If it was a hard lockup then the file corruption probably would have made me chuck my card by now.