Hi all
I am new to this site. I read, I read, and....? I d/l 865.3244 for my go 720, I bought an sd card, copied the files. TThome sees the files but can't use them. tthome is drive N on my pc and the sd card is drive M, I click on "change navigation system" to M (sd card), but the tt stains on N. I have absolutely no knowledge of what to do. ...