I ran the update a couple of days ago, and ever since I noticed that the GPS is tracking a little off. I run the same track every time, and it was always within a 10th of a mile, but since the upgrade it's running about 10% less. For example, the first loop around has always been exactly 5 miles. The last 3 times it's been 5.5/5.6 miles. Has anyone else noticed this behavior?