You may have to do a hard reset or a more drastic one. The resets will erase everything off your phone.
You may get a backup program to save your files (have to use internet or card since you can't hot sync)
Do you have a manual to help you sync? (
www.palm.com)
Where are you in the sync process?
The problem with your phone may cause the hot sync problem, unless you had the same problem before the bath.