Wrong characterset printing from FF or Chrome

On my WinXP machine printing (v1.1.0) from Firefox (3.6.13) or Google Chrome (8.0.552.237) will result in only garbage, mainly a square per character. 

See: www.ictijn.nl/service/temp/screendump_pdfcreator_error.png

Must be something with wrong characterset encoding, but i went over all possible settings, removed and re-installed all apps (FF, GC and PDFcreator) including program settings and profiles. No result at all.

Anyone any ideas?