Blackberry phone still reboots

Well the Blackberry still reboots even without Google Sync installed so I’m now beginning to wonder if this was the cause of the original reboots a while back or not. The BB has rebooted itself at least once a day, normally around 4.30 to 5pm but today it’s rebooted about 4 times already and it’s not even 1.30pm yet. Oh well, as I’m off for a whole week for Christmas (yippee) I might just leave the phone off to let it get some rest.