I have a Sony Vaio computer with two USB ports and no serial ports. I just purchased a “Navman GPS e Series” that is NMEA 0183 Ver: 2.01 compliant. (See http://www.navmanusa.com/land/e_series/index.html ). However, after discussing with Microsoft) it appears that MapPoint will not work with this unit. Does anyone know of specific hardware that will work with a USB only notebook?