My system has 2 nVidia graphics cards. A PCIe 9400GT, and an 8200 built-in (nForce 730a). I decided to upgrade my drivers to 285.62, as it says it supports both the 8 and 9 series GPUs.
After it installed, and a reboot, I got a BSoD (nvlddmkm.sys). So I went to Safe Mode, and uninstalled the drivers, and then removed the video cards from Windows' Device Manager.
I rebooted, and went Safe Mode, installed the drivers, then rebooted back to Safe Mode (a trick I found a forum somewhere).
In Device Manager, it said my 8200 wasn't using resources because it had a problem (resources tab on device properties in Device Manager); when I checked the resources for the 9800GT, it had actual data.
I disabled my built-in 8200, and Windows booted up correctly. I'm afraid to re-enable it because it'll probably BSoD when it reboots.
Anyone have any advice for getting a built-in nVidia card (nForce) and a GeForce nVidia card to work together with the same driver (285.62)?
P.S. The previous drivers I had were 197.13 (from the nForce 15.56 package).
Note: I'm running Windows Vista 32-bit.