My setting are exactly the same as QuerkyBV states above. I had the same problem with the .bmp. I deleted all but english file. Mine has USA selected, but does British male voice. Took a nice long trip to the boonies listened to music player no problems. Voice interrupted right on Que. Excellent accuracy. As stated in my post I am using the external speaker supplied. When I first started using my N-81ACRD I had forgotten to hook up the aux to the glove box input which I am using just for the media player and bluetooth music. Phone comes through small speaker all of work flawlessly. I believe when I first started using this program the speaker was muted. Small speaker on display with red line through it. Hope you get it going it is dead accurate.