Casio SPF 40 display constantly refreshing?

I have had this watched stored in peices for a long time.. it was working fine but the adjust button was doing nothing.. I decided to put back together with new batteries and the watch is alive, but the display is refreshing from the bottom up, about 3 times a second... I have tried the AC contact but no joy.. is it time to throw in bin?
thanks
John
John, November 2009


link Click here to see other fixes for Casio.