i put it into the agp slot secure and snug. when i turn on the computer, nothing's on the screen, for both dvi and vga. this is for a rig that i haven't used for almost 6 years and i'm not sure if it's the graphics card or the rest of the system. i have really no way to tell, since i have no other agp cards to use and no other systems to test the agp card on. what could be the problem?