I tried upgrading from 2.2 to 2.3 using the recovery method. The upgrade installed, but now when I switch the phone on, it gets to the Cyanogen mod7 icon with the arrow that circles round the droid, but it goes no further. The phone gets stuck at this point and goes no further. I have tried other upgrades ie 1.8, 1.7, 1.6 at the suggestion of other more knowledgeable people with no change. Any help with what I can do now will be very appreciated. By the way, I have lost my backup file as well somehow.