I'm on windows xp and have my digital camera connected to com port 3. All has been fine until just recently. When I try to connect to the camera I get the message that the computer can not communicate with the camera ( though the camera light blinks as though it's connecting) I've checked in the device manager and there's no longer a com port 3.... only com port 1 and the printer port. Where'd it go ?? Any advice on fixing this ? Thanks !