Tabs in “Write” module blocking each other

Under the write tab, my sub-windows open fine and are each about 1/2 the width of the page, with the exception of the “Post” tab which extends all the way across the page. In so doing it clashes with the “Publish Status” tab. The result is that I cannot see what I am writing or the buttons under the Publish Status window, and I cannot see anything in the “Publish Status” window under the “post” tab.

Does this make sense?

I have a picture of it at http://www.shrydvd.com/posttab.png