Hi Jarl and EssArrBee! ^^ it works normally now! Using a new unpacked folder for TES5Edit 3.1.1 solved the issue for DynDOLOD World.pas Thanks a lot for your help, for the awesome STEP guide, and to all the modders for their insane work! EDIT... or maybe I spoke a little too fast xD I mean, all seems fine with the installation, but when I launch the game, it seems I cannot activate DynDOLOD from MCM :x the checkcase is greyed and I simply cannot click it. Any idea on this issue? It says "no data in DynDOLOD.esp for this location". I searched the web, and could not find this specific issue anywhere :x Again, I thank for your help and patience with a beginner ^^'