Hello, I was installing my replacement 8800GT (the first one broke) after it had just came via UPS. After putting it in the slot and connecting the PCI-e power cable, I turned on my PC. I noticed that the video card fan was spinning at 100%, which, as far as I know, is normal when you first turn on your computer. After about 10 seconds, I realised that I wasn't getting any video and that the fan was still at 100%. I also noticed that the backlight on my USB keyboard wasn't on. That means, I assume, that the USB ports weren't getting any power. When I installed my last video card, a 2600XT, I had the same problem. Unplugging an unused USB extension cable somehow solved it. When I again had video troubles at a later date, switching my USB keyboard to a different port solved it. Now, after installing my 8800GT, no amount of rearranging the cables, checking power connections, or clearing my CMOS gets me video again. Are there any other things that I could try? I have and ECS AMD69GM-M2 Motherboard. EDIT: Now that I think about exactly what I did, I remember forgetting to plug in my USB keyboard. When I started the computer (after installing the 8800GT), I got the POST screen, but it told me that there was no keyboard connected. I turned off my computer, connected it, and got no video.