im trying to install my new t mobile dongle. but i have to un install the old version 1st. i tried this by following the instructions in the little book that came with the new 1. it said plug new version in and it will auto un install old version and install new. it did not.. i keep gettin a msg say u have an EARLIER VERSION OF SPEEDMANAGER PLUS/BYTEMOBILE CLIENT INSTALLATION EXISTS ON THE SYSTEM. this version must b un installed.. ive tried everything.. even opend registry. my OS is XP service pack 2. can any! HELP??