Flash "pasteboard" not showing when open new movie clip


Whenever I open a new movieclip in Flash, the stage size is distorted (should be a 600 x 450). It should be a rectangle and be placed in the middle of the screen. Instead, when I open a new movie clip, the stage is placed all the way to the left of the screen and I only have pasteboard on the right hand side. Because of this, I can’t see the entire stage.

Here is a pic so you can tell what I’m talking about:

Please help!