I've had massive problems with Missing Sync for Windows Mobile from the start. I've never had so many problems. Currently, Missing Sync won't let me overwrite my device's contacts because of this RAPI error, and their knowledgebase article doesn't help since so many records have problems (Mark/Space suggests that I manually type in records that have problems!).

------------------------------------------------------------------
9/13/08 15:09:40 MSUI: Mark/Space Contacts: Locked com.markspace.syncservices
9/13/08 15:09:40 MSUI: Mark/Space Contacts: Locked AddressBook
9/13/08 15:09:41 MSUI: Mark/Space Contacts: Preparing for refresh sync.
9/13/08 15:26:53 MSUI: Mark/Space Contacts: Error writing record for contact: Aislinn Bird / UC Irvine.
9/13/08 15:26:53 MSUI: Mark/Space Contacts: RAPI error: 0 last error: 60
9/13/08 15:26:55 MSUI: Mark/Space Contacts: Error writing record for contact: (null) (null) / Kinokuniya Bookstores in SF.
9/13/08 15:26:55 MSUI: Mark/Space Contacts: RAPI error: 0 last error: -2147024809
9/13/08 15:26:55 MSUI: Mark/Space Contacts: Error writing record for contact: Viet Nguyen / (null).
9/13/08 15:26:55 MSUI: Mark/Space Contacts: RAPI error: 0 last error: 32

(repeat ad nauseum for 300 records).

I'd switch to Syncmate in a heartbeat but they only support USB (my mac doesn't even recognize my plugged-in Treo 800w) and wi-fi (which Windows Mobile 5 doesn't support at all).

Any solutions? Thoughts?