Mask not showing

I have CS6 and have a problem with masking. I am not too knowledgeable on this so forgive me if it is simple. I am using a program (Green Screen Easy PRO Demo) to remove green from a subject and it of course removed some green from the foreground as it should. So I have instructions on how to paint the green back into the foreground. Trouble is, nothing seems to be working and I know it is my limited knowledge in masking. When I click on the layer mask the image is supposed to turn white with a black background so I can do some work. Well, when I click on the foreground layer mask nothing happens, the image is still there on the screen,nothing changed.

So my question is, how can I get the mask to show as it should. How can I get the image on the screen to turn black background and the image be white when I click on the foreground layer mask so I can work on painting the green back in? I figure it is a setting in photoshop so can someone help me? Thank you.

there are several ways to do it. what you want to do is to hold the alt key when clicking on the mask. a much better way is to press the back slash key to reveal your mask as an overlay so you can actually see the image while youre painting the mask. hope that helps for what you want to achieve

You don't get a double line around the mask? If you do, you can just paint B/W on the image & the mask will pick up the change.
Edit: In this case, you won't actually see a mask area on the image, but you will see the effects as you paint on the image. And that change to the mask will show up in the mask thumbnail.

boerewors wrote in post #15017067
there are several ways to do it. what you want to do is to hold the alt key when clicking on the mask. a much better way is to press the back slash key to reveal your mask as an overlay so you can actually see the image while youre painting the mask. hope that helps for what you want to achieve

Hey..that is what I needed..thank you.

PhotosGuy wrote in post #15017247
You don't get a double line around the mask? If you do, you can just paint B/W on the image & the mask will pick up the change.
Edit: In this case, you won't actually see a mask area on the image, but you will see the effects as you paint on the image. And that change to the mask will show up in the mask thumbnail.

Nope, no double like or anything. I clicked on the mask and nothing changed..

Shooting wrote in post #15023890
Nope, no double like or anything. I clicked on the mask and nothing changed..

I'm using an old version of PS. Either they've changed something, or you might have something going on in the background? I assume that you've shut down CS6 & restarted it?

Shooting wrote in post #15023890
Nope, no double like or anything. I clicked on the mask and nothing changed..

In PSCS6, this is what you see when you are painting on a mask.