There is no code behind the WiFi button yet (if anyone wants to write it, I'll add it, but it's probably a good few days work). So even with Wifi working, it will do the same as you are seeing.
The Portsdown was designed to use a wired connection for updates - suggest that you do that.
I had mistaken your previous comment about not having touchscreen support for /setting up/ the wifi as meaning that it wouldn't allow you to initially configure things, not that there was /no/ functionality behind it.
Note to self: try reading and thinking in future
Ok, I'll get down into to the corner and seek out a wired port this weekend
Thanks for your assistance!
I managed an early finish from the office today, so I braved the black hole and found a free gigabit port...
Portsdown software not all up to date and all new menu features present
Many thanks to both Dave and Wilm for help and for bearing with me during peak stupid.
Now to get the lime mini connected and configured...