I simply unpacked the meshes and textures.bsa and afterwards deleted the bsa-files. Everything is fine ingame, just my map is suddenly more or less white with some clouds. All the dark colors, the definitions of the towns and mountain ranges, are gone. It′s very hard to find my way around Skyrim this way.
I put the meshes.bsa back, and the map was fine again. I checked, the original meshes.bsa has two main folders, meshes and lodsettings, and both are there (with all their files). What is going wrong here?
Thanks for your help!
