With evil on this one and what a headache! I tried several different usb adapters for the PC and had zero luck with the efforts. The combo that worked for me was to find an old palm (yeah! remember those monochromatic puppies!)on craigs for $10, a PC program for the palm so it can communicate with the PC, and Dynojet made/makes a little adapter doo dad that has a pin on each side removed so you don't fry the PCII. This set up has worked flawlessly and I can toss it in the givi if i feel like swapping maps during a ride to A/B them.
Good Luck!
Side Note / thread jack
-Evil- I have vance and hines slip ons and a K&N got any maps you can send me?
Your BestMap worked good but yielded some low mpg's. well in hindsight there might be a pretty good reason for that.....