XDA support

Anyone know how to make a GPRS connection from an XDAii persistent? Mine hangs up after about 60 seconds of non-usage and it’s as annoying as hell. I connect to Gmail and by the time I’ve read one email the thing disconnects and I need to wait another 30 seconds for it to re-connect. I’ve gone through the settings and I can’t figure out anyway to change it. BTW I’m running Windows Mobile 2003 second edition.  Huh… I thought I upgraded to 2005. Weird.