did you make the mistake of moving the cards with the pc on or with the power connected to the pc. if you did try using the cmos clear jumper then put in only the video card with the power off. make sure if the video card needs power that all the cables are connected. if no video comes up see if a friend has a spare card you can try and try your card in another pc. also make sure there no bent pins on the video cable and that the monitor your using is working.
I took out the CMOS battery and then use the CMOS Clear jumper and nothing displayed. I am going over to a friends place tomorrow and I will try his card in my system and mine is his. Thanks for the reply.