I just upgraded my system, well basically built a new one (all but the case and PS), and now I'm having a strange driver problem (or so it seems). I'm using Vista RC1 (build 5600) on a system with the specs in my sig below. Also using Catalyst 8.31.100.3.2.1 (Beta Vista 32-bit)drivers and NVidia BIOS P24The problem: Through the device manager, I can do a soft uninstall of the X1950XT video card and let Vista do the reinstall without a problem. I start (FSX) and the program starts fine. I continue to setup a flight and then FSX goes into full screen mode and I continue the flight with no problems whatsoever. I can restart the game any number of times and still have no problems. The problem arises if I shut down my PC and then try to play FSX again. It works fine up to the point of when it goes into full screen mode at which point it will lock-up and/or crash the system. When the system restarts, I have to uninstall the card again in device manager and it will work fine. I have tried completely uninstalling (down to VGA mode)/reinstalling Catalyst and drivers. I have power supplied to the card via the PCIe power cable plus the on-the-motherboard molex VGA. It seems to me that the drivers are somehow getting corrupted when the system reboots. I realize it can possibly be the PSU (Antec Smartpower 2.o 500W) as it just meets the X1950XT's requirements however, it seems that if it was the PSU it wouldn't work after doing the soft reinstall. Any ideas?

Have you seen that AMD/ATI released the 7.1 drivers for Vista today? It may not help but it couldn't hurt, especially when using a beta release of the OS and driver.Regards,Jim Karn

I had the same problem with some Nvidia drivers. gave an `error reading memory address` or something. Changing drivers fixed it. Sounds like it might just be a driver issue on the ATI card.Allcott