After following every step, I have seen massive improvements, but still suffering the notorious CTD. Tears of St. Lucia had a massive improvement in frame rate, but a crash did occur late through my run-through of that. I then tested Requiem, much slower frame rate and two CTD within 40-ish minutes of gameplay. I expected as much with THAT mission, it's just one long light show. This IS a major improvement, though. A guard carrying a torch or the crazier enemies in Requiem no longer sends me into desperate prayer. EDIT: Vram is about 1.6gb from what I dug up. I still altered the image_downside just to be safe.