Ok, so I built this computer , M2n4 sLi motherboard, 550 Watt Rosewill PSU, 3800+ x2 CPU, 2x512mb Corsair XMS Ram, 250GB WD Harddrive and a 7600GT. I recently sold my 7600GT to wait for a Dx10 card, and in the meantime, I had to send my motherbaord back for a RMA. I also bought a 6200 TC 128 bit card to hold me over. I got my motherbaord back today, put it all together and when I turn it on nothing comes on screen, everything else seems to turn on though. Ive never installed a graphics card so is there something im missing?