Hello,have me yesterday put together a new computer and assembled bythemselves. After I was done with the assembly I wanted to hook it upnaturally and install Win7 on it. PC went on without any problems andfans all in working order and even the lights on the motherboard hasshone. However I got no image output and thus the screen remainedblack where the error could be have already checked all the cables,am perplexed and ask for help thank you once before in advance. If ithelps here is my configuration: PSU Cougar PowerX 550 WattMotherboard Asus M5A78L LE AMD FX-4100 graphics card Sappihre HD 68704GB Corsair Memory.