I've recently replaced my geforce 4 4400ti with an ATI 9600, and have put my Geforce into my wifes Thinkcentre A30. However, when I unplug the monitor cable from the mobo, I get "no input signal" as would be expected. Yet, when I plug into the gfx card, I get a black screen - which means there IS a signal, but I'm getting nothing. Any ideas? I'm attempting now to install the Leadtek Winfox software for the card but it keeps telling me there's no leadtek product.