v1.67 is not even fully released yet, according to Bioware's web site, so you have at best 1.67 BETA 4.
In any case, don't update your own copy of NWN to 1.67 (or any other patch level, for that matter) until we have had a chance to update the modules to 1.67 on our end and make sure they work. If you update too soon, you'll find that you won't be able to log on. You'll need to revert to 1.66 to keep playing.