Why did my activity upload to a different user account?

This is very strange. I just uploaded a new activity from my edge 305 and it went into someone else's account. Have you ever seen anything like this before?

http://connect.garmin.com/activity/12310260
Some account named dbenson43. I can't edit this or change the privacy. [I don't know, but I'd bet that dbenson is the next user alphabetically after me.]

Mon, Aug 31, 2009 10:07 AM Eastern Time (US & Canada)
By dbenson43
Activity Type: Cycling
Event Type: Uncategorized
Time: 07:54:17
Distance: 102.40 mi
Elevation Gain: 4,624 ft
Calories: 9,463 C


So I tried uploading it again, and this time it went into my account:
http://connect.garmin.com/activity/12310532
Mon, Aug 31, 2009 10:07 AM Eastern Time (US & Canada)
By dalesd
Activity Type: Cycling
Event Type: Uncategorized
Time: 07:54:17
Distance: 102.40 mi
Elevation Gain: 4,624 ft
Calories: 9,463 C