[OS X TeX] weird indentation

[Alain Schremmer]

I have not been able to figure out what is going on with the  
following code (TeXShop 2.14 under 10.4.11):	
	
	\documentclass[11pt]{book}
	\usepackage{paralist}

	\usepackage{lmodern}	  		
	\usepackage{fink}
		
			           \setdefaultleftmargin{5mm}{6mm}{7mm}{8mm}{}{}
		        			% controls indents on compactitem

		\begin{document}
			\begin{compactitem}
			\setlength{\itemsep}{0mm}
				\item
					A
				\item
					B
			\end{compactitem}
		\end{document}

As is, item A will be more indented than item B. Comment out lmodern  
or fink (or the default margin) and item A will be flush with item B.

Obviously no big deal but it' s starting to get on my nerves.

Hopeful regards
--schremmer