When using my speakerphone, my Treo often shuts down and turns itself completely off. On trying to power up it does a network search for ages but cannot find the network. I have to keep turning it off and on untill it behaves normally. This is my second unit from Handspring with this problem.

Has anyone else experienced this problem? Is this a bug?

Please note this is not a carrier problem as I am not getting a weak signal OR a dropped call but the unit is powering itself off.

Apparently the "phone power off" problem is well documented
with the Visorphone. , anyone experienced it with the Treo.