Hi everybody! W221, S320 cdi, 2009. Had a bit of trouble setting the clock properly in Comand screen. Eventually sorted that OK, but went to look at other things at the bottom of the date/time section. Saw AUX and put a 'dot' in it, now I can't get any screens up except the air con at the bottom. I've disconnected the battery overnight and then took the fuse out in the rear armrest for a couple of hours all to no avail. HELLLP !