Alright... here's the story.

Around a couple of months ago, I was annoyed to find the computer would not start up properly one morning. The computer made an unusual beeping noise near the start, and the monitor remained blank (I was aware that the beeping meant something, I just didn't know what). I checked the cords, and knew that they weren't the problem (the screen showed a different message when it was unplugged to when it just wasn't working). After a short while, it became apparent that while the monitor was not functioning, the computer was still turning on. So I turned it off and back on again a few times, just to make sure. Then I went to do something else. That afternoon, I found the computer was working again. No-one had done anything, and it seemed ok then.

Over the next few weeks, every now and then it would do it again, leaving me and my parents (it was their computer) no choice but to wait it out.

Then one weekend my brother came over, and when the computer screwed up again, he had a look at it. He knows far more about this stuff. He found the manual for the motherboard (after some searching), and told me that the beeping meant there was a problem with the video card. He got into the case and swapped the slot the video card was in (or so he says, i wasn't watching). It seemed to do the trick, as for the next month or so there was no problem again.

Then, a few days ago, as I was playing Serious Sam HD, the game froze up for a second, then the monitor dropped out, in the same way it wasn't working before. The sounds still playing where subtly stopping. So naturally, I turned the computer off and on again. It did the beeping jank again.

After a little bit I found that it only seemed to stop working after a couple of minutes playing Serious Sam. Nothing else had ever made it drop out while I was actually doing something. I also found it strange that it didn't do that before, as by the time it started to drop out, I had just about finished the game. It didn't seem to matter where I was or what I was doing, it just dropped out randomly.

Now we come to about an hour ago. I was bored, and decided to play Titan Quest. After about two minutes, the game dropped out. This was unexpected. So again, I turned it off and on again. Then, to my shock and annoyance, the computer started up... at about 800x600 resolution. I head into control panel, display, and tried to put the resolution back up. It appeared to do absolutely nothing. Confused, I closed everything again, and then a message comes up saying that "there is no graphics driver installed, or it is not working properly", or something like that. I decided to install some (possibly) newer drivers (not something I've done before), and restarted the computer. It seemed to do the trick.

So when it started up again at the right resolution, as if nothing had happened, I typed this up because this computer is really starting to get on my nerves, and I'm really pissed off.

Tl;dr? Computer has started f**king itself in the ear when I try to play Serious Sam HD for more'n a few minutes. It majorly screwed itself an hour ago, I fixed it, not sure if I want to tempt fate by booting up the game again.

Hope all that made some kinda sense.