Hi,
we use the Postscript drivers provided by the OS and it has been like this for a long time.
I doubt there is anything we can do about this on our end in the nearer future.
Have you tried printing from a different application?
If you'd like to try if it makes any difference, we could send you a PDFCreator 2.2.2 setup.
There were some small changes to our print monitor though (each PDFCreator can now use an individual port), but this should only make a difference if you process jobs on multiple PDFCreator printers simultaneously.
Best regards
Robin