Jase I am not sure what is causing this, maybe it occurs when I reduce it in size for this site, I had that trouble last time as well.
The original image is fine.
Oh bugger,

you know what has happend here, i have quite a few of these images, and i have actually posted the wrong one.
The one your are looking at is the same as the last one, sorry.
I had better fix that, see if i can fine the right one.
leon