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