I suppose you're writing to me, JALBA alias KD5OM.
I have been tearing and reasembling PCs for 20 years and I chose SIIG because in the past, their stuff always worked the first time.
As I shared, I tested this cable installation with my Street Atlas mapping program and three different GPSs and it works on all three.
I have uninstalled and re-installed the drivers, re-mapped the com ports through the Properties Dialoge box.
I wish Garmin made a USB cable for the Etrexes.
Thank you for the fast reply.
Jerry