FSX never ceases to surprise me. I've been preparing a review of Earth Simulations' North West Scotland photoscenery for the Hangar, and was looking at the effects of scenery complexity on framerates. I'd been experiencing framerates well over 30 FPS, with fairly high settings when, after a re-load, framerates suddenly dropped to less than 10 FPS. I checked the settings, re-started the sim, but still the poor framerate persisted - until I changed the orientation of the viewpoint by 90 degrees in Slew, when the framerate went back up to a normal 30 plus. Strangely, after turning through a full