I've just started a new OB game on a Steam install and it's super bright. I have brightness turned all the down and Cava Obscura installed (tried it with Let there be darkness too) but it's blinding. Other games seem fine including Morrowind which is even a little dark. It's the same with old save files from a CD install. It only seems to affect OB files. Anything obvious to look for? I did upgrade my ATI drivers (for a 5770) through Steam about a month ago but, again, all other games and applications are unaffected.