Obsidian has released a hotfix to patch 1.06.  As explained in this post, this hotfix addresses crashes that people were having with the original 1.06.  Further, even though your game should already be at 1.06, this hotfix does increment your version number to 1.06.980.  As Obsidian notes, "if you play MP, you will need to get this Hot Fix."  If we all aren't at the same increment number as the server, we can't play on the server.  To make sure that we're all at the same place, I've updated the server, so please run your official NWN2 updater to get this hotfix.  {mos_fb_discuss:14}