For the past day or so for some reason the graphics in-game seem to constantly have a vision altering shader applied that makes everything ridiculously bright and desaturated. It was fine just two days ago (as can be seen in link 1) but now it's blindingly bright to the point that even dark dungeons and overcast nights are washed out (as seen in links 2 and 3)

link 1 (from a couple of days ago)

http://steamcommunity.com/sharedfiles/filedetails/?id=133296153

link 2 (taken at 1am in-game on an overcast night after I became stuck with this glitch)

http://steamcommunity.com/sharedfiles/filedetails/?id=133296118

link 3 (taken at noon, it's like this whether it's snowing, raining, sunny or overcast)

http://steamcommunity.com/sharedfiles/filedetails/?id=133296073

I've tried switching to windowed, turning off FXAA, using refini, changing the resolution, etc but nothing helps. Older savegames don't have the problem but stupidly I haven't been using multiple save slots and the only other savegame I have for this level 54 character is at level 6....d'oh.

I read somewhere that this is caused by some vision shader applied during a quest, which can become "stuck" and doesn't get removed when it's supposed to, but I can't find anything telling me how to fix it.

I haven't installed any new mods, removed any mods, installed any new DLC or changed my settings inbetween the period that the screenshots above were taken.

Note: I've found that using the "teofis" console command hides the problem but at the same time it also removes all other post-processing like contrast adjustment and blur, so it's not really a fix.

I'm on Win7 Ultimate x64, running an Nvidia GeForce 460 GTX OC with the latest drivers (314.07), and I'm running game version 1.9 with Dawnguard and the High Resolution texture pack DLCs.