I recently bought Fallout 3 Game of the year edition and Fallout new vegas on steam in a recent sale. I downloaded Fallout 3 and started playing i got through the tutorial fine and got to Megaton done a few quests, While i was doing Moria browns Survivel guide quest to go to the "Super-Duper" Mart it shut it self down while i was on my way to there. This happens everytime i get to the "Super-Duper" Mart, Today i actualy got to get into the "Super-Duper" Mart only for it to shut down again (The game shuts down not the computer).

Please people help me out here My PC does meet the reqiurements to play this game and i'm really in a Fallout phase so a ASAP response would be great.Thanks for reading and thank you in advance.

Additional Details
- PC's specs
Intel® Pentium® 4 CPU 2,890GHz
2.79 GHz,
1.00 GB of RAM
Windows XP

Post a dxdiag.
XP: Go to Start->run, type “dxdiag” and hit enter. Click the Save All Information button near the bottom right. This will save a Dxdiag.txt in C:\ by default. Then open the dxdiag.txt and copy/paste the information into your post.

VISTA/Windows 7: Go to Start->Search, type “dxdiag” and hit enter, click the Save All Information button near the bottom right. This will save a Dxdiag.txt in C:\ by default. Then open the dxdiag.txt and copy/paste the information into your post.

You mean the game crashed? Or the PC actually shut down?