Just tried to use my satnav for the first time and after entering the post code a message appeared stating that 'no street data was available for the entered post code' or words to that effect! Checked the code on Google maps and up popped the correct street, no problem. Then decided to enter my own post code and again the same message came up - despite the car being in the road of the post code!!! Any ideas before I go down to my local dealers tomorrow.....so frustrating