My 2720 driver install would continously fail with an error from the Found New Hardware Wizard stating that a file could not be found. When I received the 2720 I noticed that it did not have the latest firmware update. So I installed the Garmin Webupdater and tried to update the unit. It failed. Nothing worked since even after uninstalling the Webupdater. I finally rolled my system back to the restore point I created just before installing the Webupdater. I then connected the GPS and installed the drivers with no problem. Beware of the web updater.