i HOPE SOME ONE CAN HELP ME. i DOWN LOADED STREETS&TRIPS TO MY LAP TOP. tHEN WHEN i TRIED TO LOAD TO MY GARMIN GPS IN THE AVAILABLE PORTS IT DOES NOT GIVE ME A CHOICE ONLY SAYS COM4.I HIT SCAN AND i GET THE MESSAGE "COMMUNICATION PORT NO GPS DEVICE FOUND." I TRIED ALL THE HELP NOTES BUT WHEN I GO TO DEVICE MANAGER I DO NOT GET A PORT ICON TO OPEN. ANY IDEAS?