My droid 2 synced with outlook for about 5 months-- just by plugging it in the usb port. it stopped inexplicable a few weeks ago. when I plug in now I get an error message that the "device driver software was not successfully installed." I've uninstalled the motorola device driver and reinstalled, but it still doesn't work. actually the calendar syncs with google calendar, but I don't like google contacts and can't get the contacts to sync. what should I do?