Blank Windows in OSX

[SpiritWorks Software Development]

I have a customer reporting that my stacks open blank (no fields or buttons)
on his dual processor G4 running OSX. Anyone have any ideas about this?

Regards,

Garth Catterall-Heart
SpiritWorks Software Development
swsd at productivity-software.com
SpiritWorks is a developer of personal productivity software for
self-employed professionals, small businesses and property rental managers.
Go to http://productivity-software.com for more information.