I came home from work today and the work lights were on. There was no key in the machine and I couldn't see where anyone had tried to steel it. It seems as though the lights just came on. I put the key in and it cranked right up, so they hadn't been on long. I ran it for a few minutes; all the while trying to turn the lights off. They would not turn off. The screen that has the hours on it kept cycling between "656" and "NONE". When I turn the machine off the lights went off and on the screen it would say "InPutE". Anyone ever have this kind of problem? It is not an enclosed cab. Thanks for any help.