Dual screen. Could this be it?!?!
The DVI cable had taken away the need for phasing in the monitor settings and it wasn't too bad.
Anyway, I lost my cursor, and found it in a void to the right - a couple of swipes to get it back. I realised that while I was testing with my laptop, I'd gone to dual screens and left it like that. I switched back to single screen and there was more than a little difference in the quality. So, Nvidia card. DVI cable and one darn screen, and it's quite liveable with.
Still a bad mistake to get the old board as I now find i5 can be dual core, and yes that's what mine is. But given the price of a new i5 quad, 65 quid for MB, chip fan and memory is no big deal.
The question is: is it better to not have any graphics processing on the main CPU and use a good card, or is the closeness of the GPU a major factor in speeding things up? Also, I'm not totally clear if the final signal comes out of the CPU, or if it still has to go to a Video chip.
That was a statement, but please can it be considered a question.