Well, thank goodness I found an auto-save or a quicksave that started just as I entered the lair- and Neurik is a good guy now
So, I have to redo the first part of the level, but thats better than the whole chapter! My character is really close to lvl 15- just 300 more XP!
I've also had problems with some NPC- they'll crash the game- The Drow Commander would cast some type of spell that would crash the game everytime. The only way to get past this was to make myself invisable, drink some bull's strengh, power attack on, and kill her in one hit, so she didn't even have a chance to cast the spell- kinda sucks becuase right now, these one characters are crashing my game (evil dwarfs) so I'll probably have to get past them with some wasted potions- oh well.