[Reynard]

Background: Had car in the shop for a week(cosmetics). Key left in ignition and battery died. They charged and all was well, I thought, except clock would not hold setting.
Started car this morn and odometer has gained 6500 miles, speed indicated more than twice the speed and of course, the clock won't hold time.
Analog displays just fine, just digital out of whack. Any ideas, suggestions, etc?

Much appreciated,

Reynard