Well, I installed some mods, booted up the game, and found that my framerate was determined to stay in the teens. I have a fairly new computer, it's no slouch. I play Portal on Max-ish settings, new games on higher settings, etc. My computer can handle Vanilla Oblivion excellently, so it must be the mods. So, I start playing with the mods, uninstalling most of them, except FCOM. No matter what I do, including reducing settings both in-game AND on my graphics card (ATi Tools), I can't get a good framerate when I'm not staring at a wall. If there are people around and/or I'm looking down a hall, instant teens, tearing when turning, slide-showing, etc. So, I decided to take a more quantitative approach! First off, I decided to try out the Console's debugging functions and use the tdt command to see how much of my GPU's 512Mb was being used. Secondly, I used ATi Tools to tell me, in addition to my framerate, what my CPU usage percentage was. The results? GPU: Only 110Mb of my card's 512Mb was being used. It was not textures causing the issues. CPU: Varied wildly between 60% and 80%, occasionally hitting 50%. So it's not scripts.... The only two things I can guess are: A: My GPU is having rendering issues. I doubt this.... My GPU can handle more intensive things that oblivion, It's a 2009 card, I think. Plays everything else fine, including the Half Life 2 games, and high/highest settings. Heck, it gets much hotter running Half-Life 2 (Lap-Top, and no- It's not a crummy retail laptop, so don't even think it.) than it does running oblivion.... B: Streamline, perhaps? I've never had issues before, but I suppose it's worth checking out. What are your guys' thoughts on this?