CS2 problem

[dyphotono1]

When I convert my colour fotos to B&W or desaturate, the dark/black areas of my fots have a green tint to them making them hard to work on. I have to save the foto then open it up in picture viewer to see the result. I have checked my colour settings and have even re-installed CS but this hasn't helped.
Can anyone help please?
Dougie

[ilanphoto]

not sure I understand but if you want to remove the tint convert to grey scale and then back to RGB

[marxz]

I think the easiest way is to not convert the file but to put the channel mixer adjustment layer over the top.

as for the tone issue - does it show up only in photoshop?
If so make sure your working colour space in photoshop is a default colour space like sRGB or Adobe RGB rather than a printer or monitor colour space.