evince inverts duplex option

[Joerg Bergmann]

Hi,

on an actual fedora 9, evince (and only that) inverts the
duplex option as set in the CUPS printer defaults. My
printer is a HP LJ 1320 with external HP JetDirect network
adapter. I have two queues installed, one with duplex default
on and one with duplex default off. That goes OK while
printing from firefox, mails etc. But evince inverts the
duplex defaults on both the queues.

Any hints?

Joerg Bergmann