Hi All:
If you are using Documents To Go and your Treo is resetting when you are opening a document, you may be experiencing what happened to me and many others since the Treo650 included that program. Take a look
here to see if the problem matches your experiences.
If so I can tell you the DataViz Tech Tool worked for me and I haven't seen a reset since following the instructions.
I hope this helps you out.
SteveTaz