Thread: Roadnav running with low resolution

I have been trying to get roadnav working on my mac mini with leopard ever since I first installed it in my car, and I still can't figure it out. I can easily get it working on any other mac, but it always locks up in my car. Does any one else have this issue? The only thing i can guess is that it doesn't like the low resolution(800X480).

Any tips or suggestions would be appreciated.