OK -- this is really weird. ActiveSync on my XP Pro machine has been working fine with my SCH-i760, then for some reason it stopped finding my phone. So I rebooted my PC reconnected and it found it and worked.
The next time I tried to sync it couldn't find my phone. Failure.
So I rebooted, reconnected, and it found my phone and worked. So I disconnected, immediately reconnected and it failed to find my phone.
If I reboot and reconnect, it will find it and sync.
Bottom line -- ActiveSync is requiring a reboot of my PC on each sync, otherwise, it can't find my phone.
I have disabled my AV, but that didn't help. I looked around the forums here, but this seems to be a unique problem.
Any thoughts?

Thanks!