Hi, My MBP and Treo 650 have been syncing generally fine for the past 3 months. All of a sudden about a week ago, it doesn't sync. The conduit runs and all, and acts as though a successful sync has occurred, but no changes are made. No changes to ToDo or Datebook. Address does change. Sometimes even HotSync "quits unexpectedly." I restart the MBP and Treo and same 2 things happen. I haven't changed any settings nor upgraded to Leopard. I'm running Tiger the whole time. I've tried to research the errors in the HotSync Log to no avail. The HotSync Log is as follows: ---------------------------------------------------------------------------------- HotSync 3.2.1 started 11/18/07 11:27:54 PM Local Synchronization Failed to install PrintMe.prc - File already exists on the handheld OK Install with 1 message(s) iSync Conduit starting 11/18/07 11:27:58 PM iSync Conduit: received NULL message, disconnecting... 11/18/07 11:29:38 PM Warning: SyncCloseDB returned 16385 for database DatebookDB 11/18/07 11:30:16 PM OK iSync Conduit “iSync Conduit” failed (error = #16401) OK Voice Memo “Voice Memo” failed (error = #16401) - Failed to create HH Database: DB Name PhotosDB-Foto, Creator ID 466F746F, Type 1181709423, Flags 0, Version 5, Error 16387 HotSync 3.2.1 started 11/18/07 11:34:49 PM Local Synchronization Failed to install PrintMe.prc - File already exists on the handheld OK Install with 1 message(s) iSync Conduit starting 11/18/07 11:34:50 PM iSync Conduit: received NULL message, disconnecting... 11/18/07 11:36:56 PM OK iSync Conduit OK Voice Memo OK Media OK Note Pad OK Memos Memo Pad did nothing OK Adobe Reader Failed to install PrintMe.prc - File already exists on the handheld OK Install with 1 message(s) Backed up CurrentCarrier.pdb Backed up CarrierProfiles2.pdb Backed up Queries.pdb Backed up NetworkDB.pdb Backed up MMIDCache1.pdb Backed up MMIDCache3.pdb Backed up MultiMail Messages.pdb Backed up MultiMail Disconnected.pdb Backed up midataidcache.pdb Backed up Messages Database.pdb Backed up NetworkProfiles2.pdb Backed up SMS Quicklist.pdb Backed up PhoneCallDB.pdb Backed up CalendarLocationsDB-PDat.pdb Backed up psysLaunchDB.pdb Backed up Graffiti ShortCuts .prc Backed up Saved Preferences.prc OK Backup Last sync time and PC ID updated on handheld HotSync Complete 11/18/07 11:39:22 PM ---------------------------------------------------------------------------------- Any and all help is appreciated!! Curt