Well, the ASR files in post 1 may be for the 885T or the 3790, I can not tell and no one has indicated which unit as well. The size, 727mb, does not tell me as I do not know which size goes to which unit. If they are for 885T, they will not work in the 3790 as far as I know and the reverse seems to be true as well. We need someone with knowledge in this area. For certain, if you have voice command errors, one set of files is wrong or they are not installed in the correct place. I think you installed the gmapprom by downloading the mapsource files? Not sure that will work with your voice commands, it would not for my 885T. I had to install the entire locked image (this was for NA CNNT 2011.20 since .30 ASR files do not seem to be around as yet so I can not test this newer update) file complete for NA CNNT, unlock it using a key and then and then only would my voice commands work for Find address. Do not know if this is applies to the 3790 but would assume it does.
MikieP