I have a Presario X1000, I recently sent it in for service b/c there was a loud noise coming from where the fan is at, when the fan was not working. I got it back, and the noise was still there but not as loud, HP said they changed something in the motherboard, I'm not sure what b/c they did not send me a statement, I had to call up and ask. It's been about a week since then and now the laptop just froze on me all of a sudden, the screen went a little weird on me with waves going from one side to the other of the screen. I called HP and they had me reset the laptop, I even took out the ram and then it worked. But it happened again about 2 days later, same exact scenario, and this time, I can't get it to work. HP's answer to the prob. was that it could be the ram so they're sending me the ram for me to replace. I don't know much about computers but it doesn't sound to me like it could be a ram prob. I would really appreciate any advice I could get from you guys. Thank you.