My problem turned out to be the power supply in the PC. I was having problems with the power supply shutting off the PC when I did something graphically intensive like playing a game, so I didn't replace it because of the flirc problem, but afterwards it seems to have been the issue because it hasn't happened since. I'm guessing a voltage issue with the PSU? Not too sure, but I hope it helps narrow down the solution. To test the PSU, I downloaded Furmark, which will stress test your system. My PC was shutting off IMMEDIATELY when I started the test, so online suggestions pointed to the power supply and since I had an extra it made sense to try it out. If you were to download Furmark and stress test your system, and it shuts itself off, then I would assume you have a very similar issue.