just moved from Garmin to Tomtom, I have a Go400 for my motorcycle, quite impressed after initially struggling with different menus etc. The only thing is I miss mapsource so was delighted to receive a code for a free copy of the Tomtom equivalent 'Tyre' unfortunately I used my code to try to download this but then found out it's not supported on a Mac! Gutted, I've used my code now so I can't put it on wife's Pc, anyway round any of this?