Unknown pane appeared in client

I have Notes Client 8.5.2 and Designer open I was opening a form for editing and the Designer crashed. When the designer closed the notes client was still up with mail client open.Problem is a new pane had appeared a bottom under the preview pane and navigation pane.

Here is link to picture of the new pane.

http://img525.imageshack.us/img525/6832/capturecpa.jpg

I can’t close this pane and when I double click the pane it takes up the entire window.

When i double click again to goes back to the pictured size.

I can’t resize smaller than quarter of an inch.