1/2 column problems in editor

Today I was editing a post in WordPress, and I looked in screen options for something. I saw the 1 column vs 2 column layout. I switched it to one column to see what it would look like. Didn’t like it, so I went to switch back to two column.

Problem is that when I did that, the columns adjusted themselves, but the parts of the editor that are normally in the right hand column are still underneath my text editing area. The space for the on the right is there, but the bits never snapped back.

I really don’t like them in the one column layout, how do I get it to go back to the way it should be?

Thanks.