The one way to narrow this problem down is to take the monitor to another system and see if it works properly. If it does then it's the video card, if it doesn't then it's the monitor.
It sounds like the video card is going bad, but it may be the monitor.
I was about to surf the web via mozilla and then my screen turned a yellow tint. Crap I thought, and restarted. Now it looks even worse, and it has little black dots all over it, a yellow tint, and under settings it it set to lowest color quality (4bit) and 800x600, and won't let me change it. The monitor is some kind of Dell, not a flatscreen, and not that old either. My card is a radeon 7000. Any ideas? Please say my graphics card or monitor didn't die
I Restarted in safe mode and it looked normal, and I changed the settings and restarted, but now the colors and everythign are right but everything looks slightly blurred, like every thing has a slight blur to the right.
I restarted just now and got the same crap from above w/ dots and yellow tint but it let me change the resolution and color. I set it to normal, and then it asked if I wanted to keep the settings, but my screen was flickering. I pressed no, and got a black screen. I restarted, and now it's normal except the blur again. Any ideas?
(I posted this on another site piece by piece, but didn't get help)