Where do I start on DDX_Radio?

[Bill Medland]

Any chance of a quick pointer on this?

I have a dialog containing a group of radio buttons, managed using DDX_Radio
etc.  On windows the DDX_Radio sets the correct button.  However under WINE
it always seems to set the first button of the group.
Does anyone know what part of the code I should even be investigating (i.e.
where is the dialog management code)

Bill