was wondering if anyone could help on this.....and sorry if this has been asked in here before......I have a TT740 with the latest maps 8.50 and app 8.371.......I somehow have lost the ability to use the voice control on my TT.....I have all the speech files that are required but nowhere in the preferences can i activate my voice control.....the icon is greyed out......if anyone could help with this it would sure be appreciated.