it looks as if you've hit 2 on the keyboard, which will show you the smooth preview mesh and the original wireframe
i'm guessing if you hit 1 then it should straighten itself back up
if not then... i don't know the answer :p
that's a "Ch" pronounced as a "K"
Computer skills I should have:
Maya, XSI, Photoshop, AfterEffects, Motion, Illustrator, Flash, Swift3D