Minor update. I've plugged it in to a slightly less cack Dell desktop, and that picked up the resolution fine. Wow! What a lot of space, I'm actually surprised how much real estate over my 19" work monitor this screen has. Only connected through VGA, but lovely display, no dead pixels (using pure blue screen to test) and very uniform so far. I guess I've not tested well for stuck pixels (at least blue ones -if indeed one does have blue pixels?).
PHEW!
First hurdle out the way'ish - you will need to rotate through all the colours to be sure.
So, that just leaves the ourageously bad ghosting and terrible colour bleeding to overcome now .