beeping from Navi 2007 accord

today on my way home my navi was beeping every 12 seconds or so.
It kept doing it until I selected audio for the display window.After
that,the beeping stopped.
Anyone else have this happen to them?

 

Have you bothered to look at the owner's manual?

 

of course,that is why I checked here also.

 

Well............... I take it you didn't find anything useful in the
manual...?

That's a little hard to believe.....

 

Train warning?

<http://www.dailymail.co.uk/pages/live/articles/news/news.html?in_article_id=453991>

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If you have any info,it would be appreciated.If not,save your time and mine.
As I said,I could not find any info on my nav beeping.I checked the manual
and was unsuccessful.
If I missed something please refer me to the page.
If you rather not,refrain from doing so.

 

lol...no,not where I was at,but useful info. for the future.
Thx,