Jurabib and inproceedeings

[Andrea Rossato]

Hi there,
I have problem running LyX with jurabib.
The problem is that I can only insert articles or books as citation 
references. If I insert inproceedings, inbook or something like this I 
get an error message while running latex to export dvi, html or what's 
so ever.
No problems with books and articles.
Any clue?

Thank you.
Andrea