I have a Dell Inspiron E1505 and my screen has been flickering at times. It will do it for about 5 minutes and then stop and be fine. The screen doesn't go black or anything, you can just see the text and lines flickering... It's very annoying.
What's going on? By the way, I'm running Windows XP Pro and my CPU temp is around 50 when this happens. I can end the explorer.exe process and that doesn't change anything.