I recently just built a gaming PC with my friend. I have installed all of the drivers for the GPU from the installation disk it came with. Windows has been updated fully also, besides three updates that continue to fail. They are just security updates, they may or may not be the problem. The PC runs fine, and the display will show clear and crisp for about half an hour, until glitches will start to appear in the screen and next the monitor will appear black. The light is still on, and the PC is still running whatever it was last. I know this because it did it during a driver installation and after I waited an hour and then restarted the PC the driver install was done. Often after I restart the PC, nothing will show up at all. If I wait awhile and get lucky it will boot up normal. The glitches happen most often when I try to run a game. The mentioned updates continue to fail and idk why. I have ran a troubleshoot for the PC as well and the it says no driver can be found for the PCI Simple Communications Controller. After I choose to search for the driver online or on my computer, it says no driver found. During a Windows Update failure I got another error message concerning my graphics driver saying a problem could've occurred because a graphics driver is missing. Yet, the program, GPU Tweak, that was installed with the disk says that everything's up-to-date. When I try to update manually, it says the sam thing. This computer was not expensive. I can post exact specs when I can get back into it, and maybe some pics. Specs. Not listed is a terabyte of memory, blu-ray burner, and and an msi Z97-G45 Gaming motherboard. I have a strong internet connection and am using a DVI port for the monitor. I have ruled out the monitor as the problem. Before I said the PC was NOT expensive. I meant NOT cheap. I spent around $900 on the parts.