Using Droid X w/2.3.3 Google Calendar Sync has spontaneously stopped working. Non-syncing "phone calendar" is disabled. Only Google Account is enabled. Have checked Calendar settings in Calendar App as well as Power settings that control data synchronization. All are correctly set. Removed battery. Items in the Google calendar that were missing on the phone appeared, but new items and changes made on the phone were not reflected in the Google calendar. Syncing continues to be unreliable. Calendar storage process, which always appeared among running applications on 2.2 now does not show under running applications or running processes. Is this process running? If not, should it be? Have not yet tried clearing data from calendar storage process. Have not done factory reset. Both of these solutions are time-consuming. Any further suggestions?