[NTG-pdftex] Unknown font tag 'F42'

Hi, when viewing english live.pdf from TeX Live 2007 inst 070123 by xpdf, i get quite a few of these: Error: font resource is not a dictionary Error: Unknown font tag 'F42' Error: font resource is not a dictionary Error: Unknown font tag 'F42' Error: font resource is not a dictionary Error: Unknown font tag 'F42' Error: Unknown font tag 'F42' No idea why. And why especially 42? :-) Creator: LaTeX with hyperref package Producer: pdfTeX-1.40.1 CreationDate: Mon Jan 22 00:18:24 2007 ModDate: Mon Jan 22 00:18:24 2007 Regards, Hartmut