Cheers heaps for the info Rubini, I installed nHancer and had a play.
FYI, I found you can alt-tab out of the game, alter settings on a profile, then apply the profile and alt-tab back into the game to see the difference instantly
I confirmed what I had suspected for a while - SH3 doesn't like AA on my card, at all (geeforce go 7400 - laptop video card)
When I enable any sort of AA I get problems. By playing with the various AA compatibilty modes I get different results, the closest I can get is everything 100% but the sky is missing. Looks great tho!
Oh well, I should just get a better gfx card on my desktop, and go back to playing there