Is it this problem? Did it just start after the 1st of Jan.?
From palmOne:
Solution ID: 26450
Tungsten T3 and Tungsten E handhelds will not power off or keep turning on
When the Tungsten E or T3 handheld is powered off, it will turn back
ON after a few seconds. This appears to happen mostly in the first
week of January.
It has been determined that a birthday reminder in a Contacts record
that spans past the new year (Jan 1st) will trigger the issue.
For example: A Contacts record that has a birth date of Jan 04, 1970
and a reminder has been set to go off 7 days before the event. Since
the reminder is triggered prior to January 1st, and the birthday is
after the 1st, the handheld may exhibit this issue.
Workaround:
When possible, set the reminder to go off after Jan 1st. In the
example above changing the reminder to 3 days will prevent the issue.
To change the Birthday reminder:
1. Go to the Contacts application and tap on the record with the birthday
2. Tap on Edit.
3. Scroll down to the Birthday field and tap on the birth date.
4. Change the reminder. In the example above change the number of days to 3.
Or
You can do steps 1-3 above and disable the reminder by un-checking the
Reminder box.
This issue is currently being investigated by palmOne. Please check
the palmOne.com website for updates on the issue.