bredding said:This is a little misleading. I have been using a GSPmap 60CSx exclusively with the USB on the receiver and USB on the MacBook Pro (USB-to-USB) without a problem. My 60CS does not work however. This puts some of the blame at the hands of Garmin since some receivers have a usable USB driver and/or USB device on them while others do not. Garmin has always played on the fringe of USB compliance and they use a custom function driver that may do some pretty non-standard things. Without watching the USB bus traffic it is difficult for me to say where the blame resides. I have heard some people have had some difficulty with USB on pure Windows boxes so trying to do the same thing on a virtualized device (that wasn't designed to be virtualized) can sometimes be a problem. BTW, I have had experience with USB devices on Windows and Microsoft USB drivers are some of the worst.
What you write makes sense. However it still leaves me with a sad face.