Okay. I tried with bDoDepthOfField=0 and 'green water fix' on and 'underwater sight - clearer' on and 'real glaciers' off. I got green screen. I tried bDoDepthOfField=1 and 'green water fix' on and the other 2 mods off and I got green screen during the transition from surface swimming to underwater, but no green screen when fully submerged. I tried bDoDepthOfField=1 and 'green water fix' on and 'real glaciers' on and 'underwater sight - clearer' off. Only green screen when transitioning. I tried bDoDepthOfField=0 and 'green water fix' on and 'real glaciers' on and 'underwater sight - clearer' off. Only green screen when transitioning. I tried bDoDepthOfField=0 and 'real glaciers' on and the other 2 mods off. Green screen returns. As long as I have the 'Green Water Fix by AltheaR' turned on and at the top of my load order and I have the 'Better Underwater Sight - Clearer' mod turned off, I don't get green screen. The 'Real Glaciers' mod has no effect on it, nor does changing the bDoDepthOfField setting in the SkyrimPrefs.ini file. I'm going to leave it as bDoDepthOfField=1 because that's the default anyway, and unsubscribe from the 'Better Underwater Sight - Clearer' mod. I can live with crystal clear water more than I can live with completely opaque water. Then I'm going to spread the word on all the forums I have users for, which is quite a lot.