My Zumo went crazy and I think it has deleted all user data. I cant tell for sure, the software has gone nuts and the unit is not responding properly. <?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o> </o> Garmin can fix these, right? <o> </o> And should I try to do that? <o> </o> I have been very happy with the Zumo 450, I am going to miss it. But it has only lasted about 2 ½ years. I ride a lot of very rough roads and I assume that is a factor in the Zumos malfunction. If I were to replace the 450, Id want something very similar but hopefully more rugged.