Hmmm, that could be it. When I print the images I export them as JPEGs. I have just installed CS4 and I have not set up the color settings, perhaps that is responsible. I will do a few test and see if that resolves it. (strange though, as all pictures are worked on in the same manor, exported from lightroom as PSD files with a RGB 1998 profile worked on in photoshop and then saved as JPEGS) I will let you know if this is the solution, thanks
Mark