[[EDIT] The solution: SPERG had it's masters in the wrong order, running Wrye Bash and re-organizing the masters fixed the issue. Video demonstrating the issue: http://youtu.be/cXKquTPbdhw NOTES: 1: It is NOT my graphics card, I ran Unigine Heaven on Ultra with 4xMSAA for 10 minutes and had no issues - Temperature was 65c - Framerate never dipped below 40 - No artifacts 2: This ONLY happens on Skyrim 3: It was NOT doing this earlier, and I have NOT changed ANYTHING since (No new mods, no new load order, nothing) 4: The white bar never moves, it's always in that exact location. It starts during the loading screen when I launch the game, it's on every loading screen, the menus, the inventory, and remains in the exact same place even when walking around 5: I'm not using ENB. Mod-order list from NMM: http://pastie.org/10022215