So I managed to get outside with Voyager this weekend and on the whole it’s been successful! As expected it did throw up a few questions but my main problem was that I had trouble with the mount driver (for Avalon Linear mount).
A long story short, it turns out that if I run Voyager in administrator mode then the mount driver can’t ‘share’ the mount with multiple applications (Avalon software, Voyager, PHD2). In practice this means that if an app is already connected to the mount driver then Voyager will be able to connect as well but fails with any command (error message says mount is not connected even though it shows green in the startup list). If I connect Voyager first then any other app either does not connect or can connect but any command will fail i.e. PHD is not able to move the mount.
So not sure where the problem is (could be in the Avalon driver) but the logical fix was to start Voyager in normal mode (not administrator) and everything works fine. The question now is will this cause me other problems down the road? Everything seemed to work fine on my testing but what is the reason that you start it in admin mode by default?