For you Mac users, MacHeist is doing another NanoBundle discount (macheist.com) - 8 apps for $19.95 (plus three additional games if you Tweet about the special). Their software is pretty simple - but I've grown a bit fond of a few of their programs.
The real cool thing about it is that the proceeds go to 11 charities, distributed as you see fit.
* Action Against Hunger * AIDS Research Alliance * Save the Children * Direct Relief International * Humane Society International * Clinton Bush Haiti Fund * The Nature Conservancy * Alliance for Climate Protection * Save Darfur * Prevent Cancer Foundation * World Wildlife Fund (A popular one here, I'm sure)
I entirely forgot about this until today, and actually thought I had missed it, so... there's one day left until the offer expires.
Edit: And as luck would have it, their website is experiencing heavy traffic the moment I post this...
I'd say it's either your video card or the monitor going bad. Do you have another monitor you can hook it up to? Honestly it sounds like it might be the video card though. Check the monitor first if it's easy. What happens if you try to play a game?