I know MS Streets and Trips is one of the worst GPS software out there, however its what I have at the moment, but I am having a problem with keeping the GPS signal locked on, I have a BU-303 with many sats locked on (5-8) however once I start the GPS function is MS S&T it will find my location then lose it and I need to restart the GPS function

any idea? I am running XP

-Devin