Hi, I'm a newb... so any help would be much appreciated. I can't quite see what I'm doing wrong. I am trying to follow a tutorial, I have created new isoparms, and clicked insert new isoparms, when I go back to control vertex, I can choose the new isoparms but when I try move them, or scale them they won't move. The box and axis lines become intermittent instead perfectly formed.

I am using maya 2009 on a mac. Any help would be amazing, thanks guys.

i think this happened to me at some point on an upcoming model... did you try delete history?

alt+shift+d
or edit > delete by type > history

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that's a "Ch" pronounced as a "K"

Computer skills I should have:
Objective C, C#, Java, MEL. Python, C++, XML, JavaScript, XSLT, HTML, SQL, CSS, FXScript, Clips, SOAR, ActionScript, OpenGL, DirectX
Maya, XSI, Photoshop, AfterEffects, Motion, Illustrator, Flash, Swift3D