>>>>> "Geoffrey" == Geoffrey Lloyd <[EMAIL PROTECTED]> writes:
Geoffrey> Hi I am using Revtex4 document class and have included a Geoffrey> bibliography, selecting the correct style for my document. Geoffrey> Also I have selected natbib and numerical. Geoffrey> When I 'compile' i get the following error message Geoffrey> The package natbib has already been loaded with options: Geoffrey> [sort&compress] There has now been an attempt to load it Geoffrey> with options [numbers] Geoffrey> Any advice on how to get this to work, as you cant not Geoffrey> select a cite style. Could you try to add at the beginning of revtex4.layout the line ProvidesNatbib 1 This tells LyX that natbib is already loaded by the revtex4 class. If this works, I will add it for next release. JMarc