Help needed for Qstarz BT-Q1000P...

[Rubber_Duck]

Hi all,

Last week just got my Qstarz BT-Q1000P GPS Logger.
Been testing and playing it for a weeks....

But there is one thing really bothering me....
After I downloaded my track into the software.
and checking my track history and felt something is not right.
my track is off course...

I don't understand why and how that happen.
I've attached my track history.
you can see there is a *V* track (RED ARROW)... that's cut across the building and Stadium.
That I'm very sure that I didn't visited there.....

Once again, for those user kindly give me your advice and feedback.