I am using Sprint's Treo 650. I have no issue setting up the bluetooth dial-up networking with my laptop running XP SP2. The problem is the connection is dropped roughly a minute after it is connected. During that 1 minute span, I can connect to the internet without the problem. It looks like some inactivity timer kicks off to drop the connection. However, I am not able to find it anywhere to set this up.

Anyone has any clue?