I still can't get this to work on my 765T. I have original card!! It installs correctly but then when you ask it to say a word, you get an annoying beep. It worked prior to firmware V4.00 (i.e. v3.9) but not since. I have tried re-installs etc. Garmin now deny there is an outstanding problem despite originally saying it was a known issue and a fix would be provided. They have offered a good will gesture of refunding the cost of the language guide!
Has anybody got it to work on a 765 - if so how please.