Has anyone noticed a new file in the downloads folder "nav.bin".  I'm technically illiterate and don't know what it is.  I have tried to delete it but it regenerates with the game.  What does this little file track?  Does anyone know?

I've mainly had trouble with the Sims 3 site.  I haven't downloaded much from TSR, but I download from Annosims, AT3, Sims Design Avenue and this site primarily, so I haven't run into too much problem other than a couple of patterns that wouldn't install.

Actually the sims3pak works fine from every site but the official Sims3 site.  If you want something from the store the patch now apparently monitors what you have paid for and what you have not.  I had 2000 points from promotions.  Everything that I obtained legally works fine.  All of the sims store content that I have obtained from other sites are useless.  I have sims3paks from SimsDesign Avenue and Around the Sims 3.  Those are working fine.