I have a couple of questions about some problems in photoshop.

I'm trying to open this B&W picture and when I open it it says that the "embedded ICC profile cannot be used because the ICC profile is invalid. Ignoring the profile." I click continue and when I try to do selective coloring. It won't let me do selective coloring, the brushes are shades of gray, black and white only, so are the color fill layers. I used this picture before and nothing was wrong with it, I could use selective coloring, color fill layers and brushes as much as I want now I can't. This only happens with black and white pictures, not colored. Can someone solve this?

Another question; I'm trying to erase all the unwanted parts in my icon base because I want to fill the icon with a texture and just the subject itself. When I erase, the background under it is white. So when I fill it with a texture, it would cover the whole base. Doesn't the background under the base suppose to be those tiles? How come it's different?

I hope these problems were described. I'll be eternally grateful if someone answers these. I use Photoshop CS. Thank you!