I removed all my billboards and LoD output, deleted dyndolod, saved the game without any of the data. Then I installed the billboard, ran Tamriel for trees and terrains with Dyndolod worlds in TE5Edit, merged it all into one file in Mod Organzier. Loaded the save game and I get the nag update in the left corner again. Could it be possible that it's just data stored in my save file? Can I turn the warning off?