I have recently upgraded my whole system (mobo, gpu, psu and cpu). I have dual geforce 7800 gtx sli and a 19 " Xerox LCD screen. And for some reason, when i change my screen res. to 1280 x1024, my monitor blacks out (but pc still runs , can hear it log on/off). Yet if i change my monitors around to my old 15 " ctr, it works fine with those settings.
Why? Can anyone help me here... havent been very detailed i know .. if you need to know anything else just ask, thanks.