I have been trading emails with Garmin tech support regarding the "drift" issue with the Vista HCx. The conversation has been cordial and my sense is they are genuinely interested in resolving the issue.   I had sent them a track log - not just a screen shot, but the *.gdb file that was saved in MapSource - from a hike that contained a very obvious "drift". I also included some description of the hike that corresponded with various points in the log. I also brought to their attention a coup