First, this unit lock up once or twice a day. Usually when a POI proximity alert happens
and now, it wond change to night mode automatically like it use to.
Were you playing a mp3 when the alert sounded?
double check to see if that option is still on automatic. My touch tones revert back sometimes for no apparent reason. Also check to make sure that you are still in the correct time zone.
OK will do
There is an update to the NUVI 750 on the Garmin website...Not sure if this will solve the problem or not. I have a 750 and have not had any problems.
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