Hi All,
I have updated the Mac Package. It should now work with OS X >= 10.6.
If you downloaded the previous package and it worked (i.e., you are using 10.8), there's no reason to update. Otherwise, if you are still using 10.6 or 10.7, you should delete your current /Applications/Dynare/4.3.1 directory and download and install the mac package located here:
http://www.dynare.org/download/dynare-stable