Whenever I try to edit any of the .ini files that came with Oblivion, it tells me I cannot save the file. Clearly it thinks i should be administrator to do this (I'm on Vista), and yet theres no way at all to set .ini files to demand admin approval. So I simply *cannot* save them to make changes...Any help?

First make sure you are *not* editing the .ini located in the install folder. You want to edit the one in My Documents>My Games>Oblivion. Then make sure it is not set to read only.