I think if you're going to find experts on this, you should probably look on the NWNX boards. I don't know enough about the plugin to speak intelligently about it, and I'm not having any problems of the kind on HG, probably because we're running a different plugin, the lin version.
According to the stickies in the NWNX boards, the current chat version is 0.3.4. What is the 0.3.5 you're running? It didn't come packaged with SIMTools, did it? Sorry, it's been a long time since I've updated it, or even run NWNX on win, so I can't recall.
Funky