In troubleshooting mode..

Have been successfully doing bluetooth hotsync (which was a real pain to get going) for the last several months. Forgot my bluetooth dongle, so am trying a cable sync. Now, pushing the button causes the phone to turn on and go into hotsync mode, but computer never responds. After about 30 seconds, the phone resets.

Hotsync is running. It's setup on the USB port. Connectors are cleaned, cable has been "wiggled".

I will do a hard reset as a last resort, but I have un-synched stuff on the phone I'd love to preserve.

Any thoughts?