I just bought the P5N-E SLI,E6600,MSI 8800GTS.. At the store they put the cpu in the mobo..put on a generic pci ex video card..It posted..I put the machine together..which I have done tons of times and no post..Everything comes on,all fans,video card fan goes on,but no picture on the monitor..I have the sound card and Physix card out of the machine,so its just the video card..I even tried unplugging the hard drives(2 of them). I have pqi ram..1 gig single dimm..A 460 watt power supply..2 rails the pci ex slot rated at 24 amps..Is the power supply too weak for the video card? There are no beeps either..But the internal speaker isn't hooked up..The green light comes on the board and I can see the lan light flickering like its working..Has anyone seen that before? Any help would be much appreciated !