Thank you to all for your help.
Yes, the first thing I tried was pen's calibration without good results.
So on Sunday I tried to kill down my Ogo removing all the batteries and
changing the mains.
I waited for half an hour, before restarting, but didn't work, so I waited
for 3 hours and it restarted in pen's calibration mode, but it lasted
calibrated only 15 minutes and now the screen (for pen use) is totally
blocked !
What disappointed me a lot was that when I tried to synchronize all the
files that were blank in my Ogo with backups in my PC using auto HotSync
all my old files full of data were substituted by the Ogo blank files ! So
be carefully and make always a copy in another directory. (...arrghhh to HP
!)
Giovanni Trione
Torino - Italy
eltri@interbusiness.it