This may sound silly but was the colour adjusted on the other monitor.
Do you have a spare graphics card or try another out of a different system you can always put it back. its worth a try.
ITS all just a matter of trail and error at the moment.
1 Thermaltake Tsunami Dream case Jeantech 400w psu 220gig sata H/Drives Abit AV8 Mobo Socket 939 AMD 4200+ x 2 @ 2.6 ghz 2048 ram. 256mb Nvidia geforce 6200.
2 Abit AV8 350w psu AMD64 <A email@example.comGhz 512 ram geforce tornado 128mb.
3 Advent 7038 laptop AMD 2500+ 512ram ATI 320 graphics. wireless.