I installed Garry's Mod to mess around. I noticed that it made my water in the regular HL2 game much brighter. In fact the water was almost completely white except for refelections. I uninstalled Garry's mod, water problems still there, reinstall video drivers, still there, delete all Steam games and redownload overnight.... What the Fuck! still there. I'm thinking about completely reinstalling from my DVD if no one has any ideas.