Pmw subclassing problem

[Robin Becker]

I'm sure the cause of this must be obvious, I want to specialise a scrolled text. The
existing one shows all the right behaviours, but when I recode to use the trivial
subclass

class RL_ScrolledText(Pmw.ScrolledText):
        def __init__(self,*args,**kw):
                apply(Pmw.ScrolledText.__init__,(self,)+args,kw)

and change the client code to match

ie change Pmw. to RL_

self.log = RL_ScrolledText(mainlog.pane('log'), labelpos = 'n', label_text = 'Log')

I seem to lose the automatic scroll bars etc, what am I doing wrong? Am I missing some
class bindins somewhere?
-- 
Robin Becker