2 column Bug for page edit wpmu 3.1 ?

Wondering if this is a bug, or am I missing how to change it back.

under page edit in wpmu 3.1 > top right under screen options, last option says "Number of Columns: "
with two radio button choices, 1 & 2

I don't know why I was thinking that it might change the amount of columns on the blog itself, turned out when I select one, it changed the edit section into 1 column and now when I select 2 it wont resort back.. I can see the container for the right column, but the content is still in the first column under everything else. All that should be on the right, is in the left column under the content box.

for example, Publish, Page Attributes, and Featured Image...

anyone else?

any fixes?

Thanks, Tony V