Once machine is shut off axis parameters disappear. I use 999 then 624 to get to default softies and can run machine. The one and only battery is dead. AA 3.9 Volt. If I replace the battery will it work again? Also have 2 more slots for batteries but doesn't appear to have had them installed ever. The battery im talking about seems to have been messed with a good bit before I came across it. Any ideas?