During 1st tutorial I think I deleted an ActionScript from the Actions Panel

[CartQQnist]

NOOB in AS tutorial; Actions Panel script greyed out when first clicked - WHY?

This became a problem when I decided to erase my script and start over but what I had just used in the panel is now greyed out and won't work again.

[BernzSed]

The actionscript pannel referrs to whatever you just clicked last. If you just clicked on a frame in the timeline, or on a part of the stage with nothing on it, you are attaching code to a frame. If you just clicked on a symbol, you are attaching code to the symbol. (Remember, you can't attach code to graphic symbols.)
If you just selected a shape or multiple objects, or if you are inside a graphic symbol and just clicked on the stage or the timeline, the actionscript pannel will be greyed out, because you cannot attach code to those things.

Hope that helps!