Christ! Why does AMD not yet have a handle on this problem. Every time I'm about to re-evaluate their cards, another of these experiences pops up making me pause and think twice...."no thanks". They were great under ATI with the Radeon 9700 and 9800 Pro. Along came AMD followed by the HD series and the drivers turned to crap. Wide swings between minimum and maximum framerate, grey screens, failure to wake from sleep, etc... the list goes on and on. The HD4850 stuttered so badly for me with GTR-Evolution and GTR2, that I completely abandoned them at that point. I simply pulled that card and installed the Nvidia 8800GTX...(which had less memory and was rated slower)....problem solved. Every few weeks AMD promises a driver fix...which never amounts to anything. How can a company make such 'beautiful' hardware and then put out sh*t drivers with it....and not sort them out after so many years in business? It's infuriating. They really need to come to market with a solution (card with proper drivers) capable of giving Nvidia a run for the money. That will benefit everybody in the long run by keeping competition in the market place.