I have a Compaq Presario CQ56. The computer had worked fine for the last year. Then it got slower and slower, and finally started freezing at random times. It actually got to the point where it was not reliable enough to use. I took it completely apart to get to the fan. I can't believe I had to take the mother board out of this computer to get to the fan!. I had to remove the heat sink/heat pipe to get to the screws for the fan enclosure. I removed this huge dust bunny from the fan vent. It was so thick it was like a felt pad. I cleaned up the heat sink/heat pipe, CPU, and GPU discarding the GPU thermal pad (mistake). I used a silicone based heat sink compound to dope up the GPU and CPU. After putting the computer back together it ran wonderfully. The fan was much quieter and did not run all the time at full speed. I was so happy until I tried to play Angry Birds Seasons Demo. I would get about two minutes of play then the graphics would break up, lines would be across the screen and the computer was...