I tried other programs, M$ Office and Firefox 3, and they can print fine. Even my problematic PB app has some functions to create and print reports, and they print fine as well. It's just the "invoices" part the one which messes up its printjob. And the debug switches I tried doesn't give me any clue about what's missing; neither "err" nor "fixme". But I can do some debugging again and post the results here, if someone asks to do it.
