Used my wife's nuvi 2555 on a recent trip to Tennessee, and it had a neat feature that I'm hoping can be had on the Montana: Themes.
You could select between 'country' color schemes for the mapping. The Italia one was very handy, in daytime colors it was a cream background with black lines for the small roads. The Suomi one was good too, it showed the wooded areas in cnnt.
Any chance this is available?
I guess your get up and go needs a coffee. - Drif5