Cant switch to Visual or 2 Column layout in Edit Page

So I was editing some pages on another computer and had to switch my Edit Page screen to 1 column. But since then, I can not switch it back to 2 columns or switch to the visual tab with all the formatting icons. I have tried using the built in reinstall button of wordpress 3.5.2 but that didn’t do any good either.

Wassup with that?