The system has run rock solid since I got it. Not a single crash, freeze or lockup. I will check, but the drivers were current as of August 31. I have separate CDRW and DVD drives. I have benn running Poser4, Vue4, Bryce4, Cinema 4D, TruSpace and Rhino on it with no problems, no crashes, no freezes, no lockups. This system is used only for animation, graphics and video editing work. Nothing else. I figured that if the system was up to running the other apps with NO problems, it should be able to handle Poser 5. Obviously, I was wrong. I will double check my drivers when I get the chance later today. But I honestly do not believe the problem is hardware related. I truly do not. I would have thought any hardware or system related problems would surely have reared their ugly heads with at least one of the other apps. But I am almost to the point of wishing it was hardware or system related. It boggles my mind. Heck, I figured any problems would have come during registration but it went smoothly. ;-) casamerica