Ok, So I downloaded a really good 3d tutorial (from Kirupa shhh..) and I have been fiddling around with it and have hit a snag.
It rotates the cube correctly in the x and y axes, but the z axis doesn't seem to work properly. My understanding of geometry is not what it was, and the chances are it was never up to 3d transformations anyway.
If anyone can be bothered to stretch their head with it for a bit, I'd love some ideas as to why it's not working?