Here are today's Neverwinter Nights forum highlights, collected by NWVault (http://nwvault.ign.com). Please take into account that these are only single parts of various threads and should not be taken out of context. Bear in mind also that the posts presented here are copied as-is, and that any bad spelling and grammar does not get corrected on our end.

<font size="3" face="Verdana, Arial" color="#cc6600">Brian Chung, Technical Artist</font>

NWN 1 Diamond - Crashing, simply disappearing at random? (http://nwn.bioware.com/forums/viewpost.html?topic=571199&post=5092289&forum=42&highlight=)
You should be posting in the tech support forum, but my first suggestion would be to upgrade to 1.68. I think there is a known problem with the1.66 patch that's provided on Diamond as well, causing crashes.