Angus and Herbert (probably), I noticed that the (natbib) citation style choice doesn't use the name of the selected citation anymore (it's always "Caesar et al...").
Furthermore, in the "Information" field, the entry is shown "unparsed" (i.e. as it is in the bibtex file). Maybe this is due to your recent changes in biblio.C ? I have a second, few weeks old cvs-version on my box, on which the parsing is correct! The bib-file I'm using is Pybliographer generated, so it should be quite common. Regards, Juergen.