System doesn't boot with new video card driver

[GTCOBRA1]

I built a HTPC using a motherboard with an onboard 6150 Nvidia video chip. The system was 110% stable. Since the motherboard also had a pci-e slot for a video card, I just upgraded to the new Nvidia 7300GS video card. Nvidia video drivers generally being universal for all new cards, I figured windows would find the new card and configure itself using the driver that was there already for the 6150 video chip. No such luck. The found new hardware process went and did it's thing, and ended by saying could not install because no driver for this device found. I'm thinking huh??? OK, so I go to add/delete programs, and delete the video card driver. I then use NV Clean to make sure all traces of the driver are gone. I run the disk that came with the card, install the driver, and all is well........so I think! The PC runs fine all day, and I shut down. When I go to start up later, the PC will not boot! I get as far as the Windows screen with the scrolling bar, and the scrolling bar just stops, and bootup will go no further. I believe the point it stops at is where it should initialize the video card? The only way to get it to boot is to boot in safe mode, delete the video card driver, then reboot, at which time it boots fine and gives me the found new hardware message. I reinstall the video card driver and the PC works great, untill I shut down. Then it will not boot again, untill I go through the whole processes again of safe mode, delete video driver, boot up, reinstall video driver. What's causeing this???? Pleases help!

 

[imported_Kiwi]

Is this a duplicate of another message? You are supposed to pick just one forum and not cross-post, if it is. Assuming the other is yours, the last reply there said to make sure the IGP was turmed off in all of its several locations in the BIOS.