Technical Difficulty

My camera appears to be working fine. But when I hook it up to the Apple to download the photos, the screen goes blank and nothing happens. The camera signals iPhoto to open, but beyond that, nothing. I get no prompt from the computer that it's trying to receive the photos. So until I can figure out where the problem lies -- camera, cable, port, hardware, software -- I'll have to either take a break or post old pictures. If anyone's had the problem before, give me whatever advice you've got.