Fallout 3 freezes when I go in tiny rooms

[Traxxasred]

Outside it's fine, but once I get into a tiny room or whatever it freezes and I have to ctrl-alt-delete to close the bastard. Anyone know a fix?

   Operating System: Windows 7 Ultimate 64-bit (6.1, Build 7127) (7127.winmain.090507-1820)
           Language: English (Regional Setting: English)                 
               BIOS: Phoenix ROM BIOS PLUS Version 1.10 A03
          Processor: Intel(R) Core(TM)2 Quad CPU    Q6600  @ 2.40GHz (4 CPUs), ~2.4GHz
             Memory: 2048MB RAM
Available OS Memory: 2046MB RAM
          Page File: 1510MB used, 2579MB available
        Windows Dir: C:\Windows
    DirectX Version: DirectX 11
DX Setup Parameters: Not found
   User DPI Setting: Using System DPI
 System DPI Setting: 96 DPI (100 percent)
    DWM DPI Scaling: Disabled
     DxDiag Version: 6.01.7127.0000 64bit Unicode
  Card name: NVIDIA GeForce 8800 GTX
       Manufacturer: NVIDIA
          Chip type: GeForce 8800 GTX
           DAC type: Integrated RAMDAC
         Device Key: Enum\PCI\VEN_10DE&DEV_0191&SUBSYS_039C10DE&REV_A2
     Display Memory: 1509 MB
   Dedicated Memory: 743 MB
      Shared Memory: 766 MB
       Current Mode: 1920 x 1200 (32 bit) (60Hz)

[SteeleCratos]

is this just with Fallout 3 or do these happen with other games?

[Traxxasred]

Just Fallout.

[SteeleCratos]

Reinstall.

[Morkcheese]

OP it seems to be a problem with quad cores, I'm having the same problem and so are people on the Bethesda forums
[url]http://www.bethsoft.com/bgsforums/index.php?showtopic=908299[/url]
It seems putting this,

bUseThreadedAI=1
iNumHWThreads=2

into your fallout.ini fixes the problem, I'm about to test that now.

[editline]01:36AM[/editline]

nope didn't work