I've followed the gametweak guide to the letter and have been doing the ugrid trick since oblivion but for some reason, fallout 3 and vegas are notoriously crash happy when you touch that ugridstoload setting.
I've bumped it up just 2 numbers and instantly the game crashes once I guess it tries to load the next cell or whatever it does.
It's a real shame because even when I set the ugrid distance to 13 and raise the uNumDepthGrids to 3 as well. Still crashes like crazy. I have to default back to the game's ultra high settings (which compared to the modified ugrid setting is laughably bad)
What makes me even more mad is that the game is still perfectly playable with the high ugrid count
I'm beginning to think that this is just a flaw with the gamebryo engine because every one of their games has had this problem and it's not just my system it's guys I work with can't change anything either without their games crashing.