While upgrading from a 2.6 dual core to a 2.3 quad core, something very very bad happened. My monitors won't get a signal anymore! the comp is running, but it isn't getting to the monitor. i thought it might be the quad, so i went back to my dual, same problem. tried a single i had......same thing. tried 3 diffrent gpus same effect. diffrent monitor, diffrent hdd, diffrent comp to monitor cable, diffrent ram, diffrent mobo, nothing is working. I have no idea what is going wrong, and there is no logical reason why it is happening. please pour out your infinite logic on me o computer gurus, im havind Call of Duty withdrawls.