Can't rotate graphic

[Ken Norris]

Hi list,

No matter what I do, I can't make a graphic rotate. Here's my simple script,
basically right out of the Dictionary:

on mouseUp
  revRotatePoly graphic "myGraphic", 90
end mouseUp

I can't get this to work in either the script of the graphic itself or
another button.

The ONLY place it works is the  Message box.

Haven't run across this with any other command structure, so I'm guessing
it's a bug.

Any help for it?

Ken N.