thank you both for input

I am trying to print for a local club comp, after summer recess, on subject 'multi-colours' and, trying first tests using incredibly harsh light from slide projector with no slide as the club does, it reminded me that the classic pearl paper I have used for ages scatters light horribly and, surprisingly, more so than glossy

So I came back with a pack of HP Premium plus glossy (not able to get Canon locally), reread the Canon blurb on printer and Canon semi-secret blurb on colour profiles, changed nearly every single setting and, hey, I have prints that are nicely saturated and even with brightness beginning to make up for loss of backlighting one is used to compared to looking at pics on screen....a tad skewed to pink, but OK for this job and probably correctable.

So happier until I find out the price of Canon A3 paper

BTW, OS 10.5.5 arrived itself this morning and NX 2.1 waiting for installation, though doubt either will make any difference.