Hello folks.
I got GOTY edition of Fallout 3 several days ago, and am playing it with xbox360 wireless controller.
The game itself plays great, but I somehow can't turn off the vibration for gamepad (Even if I do so in Settings the gamepad will vibrate whenever it's supposed to vibrate) and it's consuming the battery!! Anyone got any idea how to manually force the vibration off? Something I can change in the ini. maybe?
Much thanks in advance.

Don't think you will be successful. There is another thread on this, so I am going to close this one as it addresses the same issue. There are some things to try in the thread I am going to link you to

http://www.gamesas.com/bgsforums/index.php?showtopic=1057864

Reply back in that one with any success or failures.