My PC refuses to boot. The power switch lights up and the fans spins, but it doesn't boot. Usually this happens for long stretches of time and then sometimes it magically boots after a few restarts, but recently the screen resolutions are screwed up and my PC doesn't detect my GeForce graphics card.
This has been going on for over a year, and I've sent it for repairs more than three times. It comes back fine, but in less than a month the problem comes back. Sometimes when I resit all the cables in the tower it boots, but that doesn't happen anymore. I read somewhere that this exact problem is the hardest to troubleshoot.
What should I do? I know very little about PC hardware, so I'm quite afraid to take anything out I'm not sure of fixing back.