Subject line says it all. I've deleted addresses and destinations from the previous owner and entered some addresses of my own. About an hour or so later, the PO's addresses are back and none of mine are saved. Must have tried this 20 or 30 times over the last couple of weeks...no change.

Car's a 2001 530i with the widescreen Nav system, running SW3-1/30.

Any clues as to what can be wrong? I've RTFM already. <vbg>