Fallout 3 wasn't working for me untill I applied this fix.
Fallout 3 is incompatable with systems that use a quad core processor, but there is a method of forcing it to use just two cores instead.
Fix can be found here: http://www.sevenforums.com/gaming/20199-fallout-3-windows-7-w-quad-core.html
Copy and paste from the link above, below:"Vista SP2 with a dual core worked fine. After upgrading to a quad core and Windows 7, I was lucky if I could play more than 5 minutes without a freeze.
A fine gentleman named Nicholas Head posted this solution on his blog. Along with several others, I can confirm this fix works! (YRMV)
Fallout 3: Video/Display Freezes, sound keeps going
by Nicholas Head 7. February 2009 00:35
Ever since Bethesda came out with the 1.1 patch for Fallout 3, I couldn’t play the game anymore. Once I got into the game and started wandering around, I’d randomly “freeze” up… the video would stop updating, but the sounds/music would still play. Keyboard clicks and mouse clicks did nothing, requiring me to ctrl+alt+del and kill the task manually.
It looked like I was SOL until the next patch, but I found some help online:
The game engine has some issues with processors that have more than 2 cores. You can force the game to only use two of them and it will stop the freezing. I haven't had it freeze once since I did this several days ago.
Open up the fallout.ini file in: My Documents\My Games\Fallout3
Find the line:
change it to:
Add another line after it and insert:
This will limit the game to 2 cores and prevent the engine bug from causing the game to freeze.
Surprisingly, this worked like I charm. I do indeed have a quad core processor, so it sounds like this was the culprit. Why 1.1 broke the game for me.. I have no idea. It sounds like Bethesda needs to do some better testing on multi-core processors."
Unfortunatly I don't know whether this file is in the same place for Fallout 3 on steam as I brought my copy on disk. Could someone route around and find out if FALLOUT.ini is still put in My Documents\My Games\Fallout3 by steam? And if not, where steam has put it so people can try this fix?