Had notification through that there is a medianav software upgrade from 4.0.5 to 4.0.6. Have just done this but beware, you loose all your saved radio stations plus more annoying all the saved favourites in navigation. Also at the end of the upgrade you have to enter the 4 digit authentication code for you medianav. What a farce. Wonder if 4.0.6 reinstates the reversing camera - we should be so lucky!!