[crashjack]

mine has never done that, though i cant honestly recall my phone's data connection being dormant long enough for that to happen. you might try checking ur sounds setting to see if there is an alert u can turn off. another work-around would be to install a program that keeps the data connection active. i have had weatherpanel installed on my Treo Pro since day 1 and it keeps my data active since it auto updates every 30 mins.