PDF warning under Ubuntu and Fedora

[Stef Mientki]

hello,

Does anyone recognize this warning, which is produced under Ubuntu and
Fedora but not under Windows ?

** (python:10896): WARNING **: Can't create printer "PDF" because the id
"PDF" is already used
(python:10896): GnomePrintCupsPlugin-WARNING **: The CUPS printer PDF
could not be created
(python:10896): GnomePrintCupsPlugin-WARNING **: The data for the CUPS
printer PDF could not be loaded.

thanks,
Stef Mientki