ps color problem! ! ! Urgent! ! ! You help ah! ! !

I have a map by a ctrl + @ keys, the map becomes black and white, and how not to restore all ~ ~! ! How to do! ! ! You tell me, I plan my effort ~~~~~~~ 555 555 555 ~~~~~~~ ~ ~ ~! ! ! ! ! ! Thank you friends ~! ! !

I have tried all kinds of revocation or return to the previous step of the way, has no effect

ctrl + alt + z to the previous step can be continuously withdrawn, or look in the history panel, you can return any operation a state, the default history 20.

Undo!

Shortcut keys ctrl + alt + Z to step forward and return to operation 20.You can see the toolbox on the right side of the history of operation, back up step by step.

Friend, this is according to the shortcut keys of the channel.ctrl +1 is the red channel, ctrl +2 is the green channel, ctrl +3 is the blue channel.you click ctrl + ~ ok.hurry try!

To change history in the next

You are the red and blue channel to shut, you are layers there, point channel, they opened (opening the eyes) on it, or use the shortcut keys ctrl + ~

This problem is very simple.you press the shortcut key to a.ctrl +2 is the green channel, ctrl +1 is red, ctrl +3 is blue, click ctrl + ~ on the line.That can not be revoked.

you anxious, I do not wordy:ctrl + ~ (esc below the key)

so good, you just click on any one layer was restored.