Noob needs help connecting Nodes or is this a bug?

Dumb Noob question or bug?

I cannot get any node to connect with any other node
Wires will not connect or even appear over new node, or pre existing ones, regardless of what i do.
I have re-installed the demo a few times.
tried re-jigging mouse and wacom.
no luck.
pretty ridiculous
any clues?

When you hover the cursor over the node connection point, it should change to what looks like a black/white checkerboard pattern. The without moving the mouse, give it one left click and then move the mouse towards the other node connector.

Maybe it’s a mouse setting. I know I had a problem right clicking devices to open the parameters and found I had to click faster – a slow click wouldn’t work.

Yep, Noob that I am I was click dragging!
thanks for taking the time to reply.
Best