Whoops! Zurgle users beware...the TeletypeWindow class isn't happy with something after Zurgle is loaded into the image!
I get a rollback: MessageNotUnderstood: contents: in TeletypeWindow>>initialize
It appears to be the line: label contents: 'teletype'
in the initialize: method.
It works fine on an image without Zurgle...after I apply Zurgle, it stops working.