Outrageous distances/speeds

What steps will reproduce the problem?
1. Engage MyTracks
2. Ride bike to Manchester (0r back; that was even better)
3. Upload map to Google Maps for all to enjoy!

What is the expected output? What do you see instead?

14+/- miles expected bike ride; 139.6 miles reported for one, 598.8 miles for 
the other (see referenced maps)

What version of MyTracks are you using? On what version of Android? On what
phone?  MyTracks 1.1.7; Android 2.3.3; Motorola DroidX

If possible please provide a log.  Either upload here or send to mytracks-
support@google.com.
Detailed instructions can be found here:
http://code.google.com/p/mytracks/wiki/HowToReportErrors

Please provide any additional information here:

<http://maps.google.com/maps/ms?msid=202668468861868734670.0004a7350b052044bd78f
&msa=0>
<http://maps.google.com/maps/ms?msid=202668468861868734670.0004a7350dd9b72777a40
&msa=0>

I also downloaded "GPS Test" and will reboot the phone before the next ride.  
GPS test shows 6-9 satellites visible indoors.

My Tracks version 1.1.6 worked fine until "recently".  No change to phone at 
the time it started acting flakey - My Tracks 1.1.6, no apps added within 
several weeks, and no other GPS-location dependent apps in use at the time 
(that I know of - don't know what is started automatically.)

Updated to 1.1.7 after an outrageous track was recorded 
<http://maps.google.com/maps/ms?msid=202668468861868734670.0004a6e444b559bc8e94d
&msa=0> but issues remain.  Log is only 7 minutes long and rides were over an 
hour, with errors sprinkled through them, and I was _way_ too late to capture 
any log info, so no log attached.

Original issue reported on code.google.com by dhloc...@gmail.com on 4 Jul 2011 at 3:04

Merged into: #340

CompanyGateways / mytracks

Outrageous distances/speeds #507