Hey guys and Gals, The answer to this problem is probably obvious but I can't for the life of me work it out. This is an old windows 7 machine that could probably do with a format, I am sure this would fix the problem but I would love to understand why this is occurring. I have a bog standard integrated Intel GPU. And GTX 780 I have the monitor attached to the GTX780 and it displays the desktop. No worries. BUT! The control panel does not see the GTX780, instead it shows only 1 GPU Intel HD GPU. Obvously the GTX780 is working as I can see the desktop on the monitor! But I cannot install the Nvidia drivers because windows cannot see it, I get an error when the driver starts to install saying it cannot find a compatible device. I am so confused!? I have tried showing hidden devices on the device manager but no luck. I have tried scanning for new hardware/changes but not luck. The reason I am chasing a solution is due to black screens I get when I try to run any 3d accelerated games. I am pretty sure this is due to the drivers not being installed properly and the great intel/nvidia mixup! Can someone point me in the right direction.