reinstall it? lol i havent touched photoshop in ages but usually when i got a big ole' eff up like that i just reinstalled it and it worked fine--only thing is you gotta redo your brushes or whatever custom settings you had before.

http://paintart.deviantart.com/

A Pack of Rotten Zombie Monkeys with the Ebola Virus Raping You>Halo 2