Thanks for your help. I've tried changing my accuracy as low as possible as well as trying absolute and haven't had luck with either of them. I'm simply trying to extrude a triangle onto the outer edge surface of the part shown below, and now the preview is all messed up. I've attached the extrude preview. Any Idea why this is happening/how I can avoid it in the future? Any and all help is appreciated. Thanks everyone
[IMG]http://i58.tinypic.com/znsvtl.png[/IMG]