Crazy Xcode garbling with code hint

Question

Hi there,

I'm having an Xcode problem, where at various times during code hinting, all the letters on the page get totally garbled and mixed around . If i select another document and then return to my initial doc, it's back to normal. This is extremely irritating, plus enervating, and i'm a bit concerned for the security of my files.

Here's a screenshot of what it looks like when its all busted. the top two lines would be where the crazy times begin.

http://tinyimage.net/share-444E_4C69B955.html

Is anybody else having the problem? and/or knows how to make it stop?

It is particularly bad when i have a constants file that i import and it code hints to extern variables in there.

Yikes! Thanks for the help!