I too am having ATI trouble
I have an ATI Radeon HD 4650 Graphics card on a notebook (HP Pavilion dv7-2185dx with Vista updated to Win7) and am having catalyst problems. I get the msg that it has quit working. When I log into my game is says 'drivers out of date' may not play. The game plays at a reduced level but not as good as it should. I have tried downloading updates drivers at various locations but no help. Even tried some that I found by reading post here. Any ideas for me? Thanks.