Yesterday I upgraded to the latest firmware, ROW 1.20, on my unlocked GSM Treo 650, and now I can't sync contacts.

Some contacts --about a dozen out of 2,000-- sync. It appears that the first few contacts sync and any new ones I now create sync, but that's all.

My calendar, TODO list and Memos sync okay (though they didn't initially after the upgrade.)

I'm syncing one-way: from my desktop to my Treo 650.

I'm using Intellisync, which worked fine before. I've tried turning off Intellisync and using the native Palm conduit, but get the same problem: only a few contacts sync.

Does anyone have any suggestions for what I might do to get my contacts to sync to my Treo 650?