Nobel Peace Prize

So, my copy of Torment keeps crashing to desktop. I have no idea why, but I figured that someone here might be able to help. It crashes only when entering certain areas (or on certain conditions).

The Flophouse in the Hive, for instance. Also when entering the secret room in the Mortuary (the tomb area accessible by the finger-bone portal near Deionarra, and also accessible through the Hive). The Aoskaran Temple Remains in the Alley of Dangerous Angles, as well. Finally, in Mebbeth's hut, the game will crash only after asking her to rest (as opposed to asking her to heal the party).

These are the only places I've observed the crashes so far. Usually after clicking the door to enter, the game will autosave, then crash while loading the area. I have all three of Qwinn's (and scient's?) mods installed, the fixpack, tweakpack and UB. I also have bigg's Widescreen mod (set to 1280x1024) with Ghostdog's UI. Given how many of the problems are 'rest' related, I should probably also point out that I don't have the 'rest anywhere' part of the tweakpack installed. I don't think these problems are related to any of the mods though.

Anyways, hope someone can help.