I recently installed a new power supply that is 700w and after doing so when i boot up my system my monitor does not register at all. The monitor just stays in standby and will not show anything. I have tested the monitor and i know for sure the monitor works. My graphics card is an ATI radeon hd 4850 and I have two red lights on the back of it when they system powers on. I'm not real sure what they mean but I don't think they should be red. I was wondering if someone could help me in getting my display back on.