Thanks Rob.
I went with the new style plug from the start actually, thought it the best idea. Perhaps I should try the simple old VGA one
I didn't think of that
Good to hear it's not just my setup which has windows knowing it only as a default display. That rules out that as being a problem.
Hmm..
Oh, and I have recently (just last week) updated my NVIDIA drivers, so they are up to date. Which matches what's hapenning as they seem to fully reconise the display and know what it's capabilities are.