Hello, I have an Asrock P4i45gv r3.0 motherboard. I recently added a radeon 9600pro 256mb card to the open agp slot (used onboard prior). The video card never worked, and i realized that it isnt supported by Asrock (funny how they support almost any other card). I turned off the PC, removed the vid card put it in the box to return....and now it wont even POST. My HD light is solid, but the green LED wont even light once. What could be the problem?