I took the SL to the local MB dealer, they put it on the computer and scanned for codes. The main code was a low/no battery code. This locks the hardtop out, and illuminates the hardtop and rollbar buttons. Problem fixed!!! And as far as the windows, I reset them as I was instructed by the members, THANK YOU!! It was suggested that if the vehicle is to be stored a battery tender be used. This will switch on and off to trickle chsrge the battery when needed.