NLA editor and action editor

I switch from the NLA editor to dopesheet - action editor
Choose one action I made earlier.
When moving the green line I do not see the character moving as the action should but it moves as set in the NLA editor.
Why is that

maybe in the NLA-editor you have activated a different animation sequence!
One action can be a part of a whole animation (in nla),
then the animation-replay wont play the selected animation, it plays
the selected main-nla-animation. There are check-buttons (little bullets in blender-2.5.x) to switch on a special action.

Solved I had hide the eye icon in the NLA editor.