[whpalmer4]

Delete the file Library/Application Support/OmniFocus/OmniFocus.ofocus on one machine, with OmniFocus not running. Start OmniFocus. Force it to do a sync to MobileMe, and when it complains that the versions do not match, tell it to keep the local copy. For any other computers or iPhones, do a sync, and tell it to keep the server/remote copy.