Working with a Treo 650, Cingular, on the latest bios.

When the phone is "on" and syncing and a call comes in (not that you see it coming in I just know it is coming in because I've dialed the Treo) it will reset the Treo once the Voicemail hits the phone. Thus the Treo resets and then when it comes back it tells me there is Voicemail.

I've run dbScan and uninstalled Docs to Go with the dataviz tool. Did a Hard reset and reinstalled all software.... I still get this issue.

I called Cingular and Palm support and they tell me that the Phone should be in "off" mode when I sync. I've worked on dozens of Treo's and have never heard of that or seen this problem. Is this just a Cingular problem?