BibTeX, biblatex and biber ⇒ bibtex citations acting strange...

[lollysticky]

Dear community,

I've started working on my thesis in latex and so far so good. Last week I started on incorporating the natbib package; I read up on bibtex, created the .bib file and started citing. I then hit upon a stumble...

If my article has 3 authors or more, the \cite command does what it's supposed to do and creates a (author 1 et al., year) citation f.e. (Aoki et al., 2007)

If the article has 1 author, is also behaves and creates a (author, year) citation.

however, If the article has exactly 2 authors, it creates a (author1, author2) citation instead of (author1 , author2, year)...

f.e. article
-> author = Al Bundy & Ted Bundy
-> year = 2004

result citation = (Bundy, Bundy) instead of (Bundy, Bundy, 2004)

could anyone have any clue as to why it behaves the way it does. I'm using the standard natbib package without any quirks.

any help would be much appreciated. Thanks

[josephwright]

As always, a full example would be nice. Please post a short LaTeX document and the accompanying BibTeX entries you use.