Thanks Cheeze, I opened it up and found that the back up battery was corroded. I bet that's the problem. Then I discovered that that battery is soldered to the pc board, (dumb move on their part). I'm gonna try to get that off the board and see if I can find another battery if I can figure out what kinda battery it is. It's a watch battery of some kind but I couldn't read the info on the side of the one that's in there. Hope the unsoldering doesn't wreck it so I can't tell what it is.
Thaks for the help.............Hal