Hi! Thanks for the many replies!

What turned out so far:

Chris McCormick: Thanks, i checked the "Remember" option and for the main Pd window it was not set, and for the open dialog it is 'unavailable'. But it must almost be something related to some winmgr preferences, since kde, etc are fine.

ChrisK: Will try blackblox too.

Common: One more strange observation: After starting Pd, the first dialog window i open (may that be open file...,etc) opens on the correct workspace, but all subsequent windows are put on Wirkspace number ONE.

Thanks again for the response, this is not too important, but one of these 'little annoying thingies' :-)

P.