Good! Happy lyx+biblatex. btw., have you tried \bibliography{C:/Users/Bernd/test4.bib} too?
best wishes mario On Thu, 2012-07-12 at 21:22 +0200, Bernd Kappenberg wrote: > Hi, > > Finally it did work! > > I had to replace > \bibliography{test4.bib} > by > \addbibresource{C:/Users/Bernd/test4.bib} > > Bernd :)