Dev Release Style Very Messed Up

I installed the dev release because another issue said the problem I had was fixed there. Unfortunately, the style in the dev release is so messed up it's unusable. See the screen shot: https://img.skitch.com/20110516-e2pyy7t2d1usb2k1tjrrc6x19c.jpg

I'm using all of the default themes - Bartik and the admin theme with no changes.