[cups.general] Cups Windows drivers - all options ignored

[Steffen Kolbe]

System: Debian AMD64
Cups 1.2.1-3
Samba 3.0.22-1


The Cups Windows drivers works, but all options (e.g. duplex) are 
ignored (on XP) and are printed with default printer settings.
The Windows drivers are build with 'cupsaddsmb'.
This problem occurs with differet printers (HP8000, Brother HL7050, 
Ricoh220, Brother HL4200CN - all with duplex).
Under Linux all works perfect.
Any ideas? A bug? false config?

Thanks.
Steffen

Which files (config, ppd's, ..??) should I post for error searching?