[missing-sync-palmos-talk] attempt to insert nil value

[Paul List Hess]

My Mark/Space Contacts conduit constantly gets this error:

 [NSCFDictionary setObject:forKey:]: attempt to insert nil value

I am running OS/X 10.4.7, Treo 700p Palm OS 5.4.9, and Missing Sync 5.1.0.  Also possibly involved or complicit is Chronos SOHO Organizer  5.5.2.

Does anyone know what causes this and what I can do about it?