OK, I've been having problems with my NEC 1250 since I got my PM G5. I thought the monitor was dying, but now I think it's the video card. I've been getting a single white line across the center of my monitor if I use it for longer than 2 or 3 hours. If I restart the computer it's fixed, but if I just turn off/on the monitor it's the same. It's still under waranty. Should I take it back? BTW- my warranty expires in March, so any quick answers would be great. 