I am trying my first morph and running into odd behavior.

I can draw for the morph, but when it is dragged the rectangular area 
of the morph is black filled, as is the shadow.  The standard Elipse 
morph is able to show an irregular shape when grabbed, and the shadow 
is similar.  I have not been able to determine what it is doing 
different from what I am doing.  I currently subclass NCBasicShapeMorph 
from Connectors 2.0.  I could use a pointer as to what I am missing.  
Is there a method that should be called to fill the form used for drag 
to a transparent color or something?  I will keep looking.

Thanks,
Michael