Since the latest firmware upgrade on the 930T, now the emulator crashes each time you access it through TT Home. I tried for hours, including backgrading TTH along with Tech Support. Actually, they aren't too bad, but they just don't know Macs that well. They sent me instructions to backgrade the 930T WHICH WERE INCORRECT - I could tell they were for Windows. Thankfully, I knew what I was doing and didn't mess anything up. I've used Garmin, and they were no better with the Macs; they took forever to develop a Mac program. The 930T runs circles around the Nuvi, so I'm stuck with buggy Mac software that was, obviously, an afterthought that was ported over from Windows. If you don't believe it, just take a look at how their Preferences "folders" are set up! And, don't try to delete those folders, TTH will crash and burn.