Help! When I play a game. watch a video, or sometimes just browse the web, the computer will freeze and have an audio loop. Then I have to turn it off with the power button and turn it back on. I've fixed all the registry, there are no viruses/spyware, and I'm just clueless. I've also cleaned the fans and made sure they were working. I'm kinda a newbie with computers. I'm using a dell inspiron 530 Windows XP version 2002 service pack 3 Nvidia geforce 8300 gs if i need to include more stuff please tell me so you can help.