Garmin Malfunctioning? (Read 698 times)

I've had a problem with the Garmin (405) the last two nights I've gone out for a run.  I run for a few minutes, look down, and it thinks I've gone an entire mile.  I lock the bezel every time I go out, so I don't think I'm hitting anything that would make it do this, and when I look at the maps here on RunningAhead, they show an outlying point way off route (last night's was in the middle of a neighboring golf course).  Any ideas?  After the first mile it seems to behave.

 

I tried to do a Google search on this but came up empty...maybe I'm just not searching on the right terms.   It's probably a week from being a year old, so if it's defective, I guess now's the time to figure that out.

You mean the 0.005 seconds I give it between it showing me the 0:00 and when I press start might not be enough?

My running partners like to mock me when I'm standing around locating the satellites before our run.  I'll try waiting an extra second or so before I press the button and start running to see if that helps.  Thanks!

  I always set my Garmin outside, turn it on,  and let it find the mother ship while I get dressed for the run. It's always ready to go when I am.

or in a window

 

or in a window

 Works better when it's south-facing.

Thanks everyone for your advice.  I always thought that when it was done with the "Locating satellites" screen that it was good.  Last night I went out to the greenway here and actually let it sit there for a minute or so before I started and it seemed to produce the correct mileage, so that does seem to be the ticket.  I usually drive to my runs, so letting it sit in the window while I get ready won't usually work for me, but as long as it fixes the issue, I'm ok with giving it extra time once I arrive.