remote control

[WCB]

OK, I know this isn't a big deal, but since it's my wife's ride it's a MAJOR annoyance!

The remote for our '98 QX4 works intermittently. Actually less and less as time goes on. I've replaced the battery in the control, but no change. I was told sometimes the computer has to be reprogrammed to recognize the remote. If this is true, how is it done? Can it be done without going to the dealer (nearest is 50 miles away)?

Thanks