my p800 auto format itsel

after encounted some error messages linked to Tracker n a short while later i want to start the IR remote,the problem started,my p800 became damp slow,i couldnt see any responses after some clicking n sometimes the whole screen just blank n lighted.I just couldnt off it n i taken off the battery n put it back to on again,The startup took quite some 20 mins,the moment u press on,it vibrated but the screen took almost 5 min later to lighted up blank,another 5 mins then pop up for pin,keyed in pin,another 5 mins to verify,then screen blanked but lighted 4 ever.I repeated the taken out of battery n power up a few times but just unsuccessful getting to the standby screen until the last time after turning on the unit for 5 mins,the message said "my internal files corrupted n will b reformat now",i leave it for another 10mins n then it shown the progress of the reformat.when its done,a message asked me the set will b shut down n need to b restarted.The shutdown in fact took another 5 mins.Then i power on the set,OK, my P800 back to normal now but without all my data,at least my set is working normal now,just dont know the problem is caused bt Tracker or IR(ver 0.85