|When you swapped the monitor, you didn't have this problem anymore? How long did you leave the "swapped" monitor attached? If it is not the video card, it has to be the monitor...especially since you can't power back the monitor w/o unplugging it.|
If you can, try the monitor in question on a different PC; if you get that problem again, you know it needs to be returned or exchanged. Good luck, hope this helps.
Sempron 2400+ OCed to 2.15GHZ
1 GB PC3200 Ram
Thermaltake T2-M4 HSF