WordPress MU

I found the image uploader is not in the center of screen today somehow, a fraction of it is out of the window, I can not see the "Save All" button at all.

It was in the center some days ago, I can not figure out what change caused this. did anybody here get the same problem before? thanks!

What browser are you using? We haven't seen this.

I've had the same problem using IE7 and Vista. The bottom is cut off. When activating themes on wordpress.com the bottom is cut off, too.