Problem with commas

Hi,

I am using Endnote X4 and the J Applied Microbiology Style.

The problem is when I insert a citation for a paper with two authors, it displays the citation like this in the text eg. Roberts and Smith 2011. I need it to display Roberts and Smith, 2011 (with a comma).

If there are more than two authors e.g. Smith et al., 2011 it displays the reference correctly.

I’ve been using this style for a while, and never had a problem and now this problem has cropped up, not sure why.

Any help is greatly appreciated!

Denis

The style must have been altered, or you are using a different style.  (edited because I was wrong in my original answer).

The citation template needs to be (Author, Year) and the  et al should stay as it was with no comma. 

oops, messed that up upon reflection The citation template needs to be

(Author, Year) and the  et al should stay as it was with no comma.