Originally Posted by Dubdub

What did you do just before it stopped syncing? Nothing out of the ordinary

Have you checked the configuration settings to make sure they are correct? You mean the config settings in DM? Yes
Have you looked at the log for any clues? What log?
Have you tried a battery pull on the BB? Several times
Are you plugging the BB into a HUB rather than an onboard USB port? Onboard port