Ok, so one day I decided to watch a youtube video. Just to let you know, I have a 4G of RAM and I dont have much disk space taken up but my CPU usage levels go wack when I start processes. So when I was loading the video before play, I get the blue screen of death! Then the computer automatically restarted after like several seconds of the blue screen of death and I start in safe mode. I couldnt use nortons internet security to scan in safe mode so I shut down the computer to scan in normal mode. When the computer turned on, it said that my virus updates are not valid, so I run liveupdate and scan again. Then, I go back to youtube to watch a video and the homepage is totally not the same. I cannot watch any videos, the box that has like "(0)comments, friend requests, etc..." is totally not where it should be. and when I search a video the video pictures are scattered. WHAT SHOULD I DOOOOO??! I'm a college student and I rely on my laptop on a daily basis. Please help me. If u think I have to get it diagnosed and repaired, do you think it'll be expensive? IS IT EVEN REPAIRABLE?! Please help. Thank you