Stack dash problem...

Ok,whos in the know about these then??

Basicley…When you turn on ignition,it all powers up as it should etc etc,BUT the millage/fuel/water digi display is lite,but nowt on it…

BUT if you disconect the batt,and reconect it,it works fine,untill you turn the ignition off again,and when you put it back it,its back to how it was?!??!?

Is that a internal problem with the stack,or a car wiring problem??

Pete…