by tas-man » Fri 15 Jan, 2010 8:56 pm
Flat battery? corroded battery contacts? Remember its a handheld computing device and there may be a process for resetting or re-booting it if the system gets corrupted. Check your instruction manual for any trouble shooting tips. Post the brand and model, and there may be another forum member with the same one that can assist.
"The world reveals itself to those who travel on foot."
Werner Herzog