#0 - Nov. 15, 2010, 3:31 a.m.
Q u o t e:
There's no way to reset an individual part of the UI (unless you know what saved variable is causing the problem), but if you don't use addons, performing the steps here shouldn't cause any serious issues:
http://us.blizzard.com/support/article.xml?locale=en_US&articleId=18761
You may also want to check your keybindings and mouse settings. Sounds like you got an axis flipped somewhere.