So I bought this beast of a laptop (Alienware) and my first order of business was to test it out with Fallout 3 GOTY. Much to my surprise the game locked up after a few minutes of play. After reading through the forums I discovered the "bUseThreadedAI=0
change the 0 to a 1 then below it add the line iNumHWThreads=2" trick. This worked great until I went to the Mothership Zeta (I think that's the name) part of the expansion disc. At first it ran smooth but after saving and turning it off for a day, the game was loaded and ran really slow and choppy. Any idea what could have happened or how to fix this?