Thanks for your detailed reply,

Quite a lot to digest here so I will have to get back to you later.

thoughts off the top of my head are

It's possible that I could be running a later version of Amiduos , if this is the case, I might be able to get you the later version.

It might be worth, for now, uninstalling tera term. Its virtual port for gps sharing may be causing problems.

I will post later, a step by step account of my settings, my connection process & software I use so you can hopefully repeat the process exactly

regards

morco