No I did not forget to activate the Output mod. But I think I got it "fixed". I have a pretty old cpu and if I install a mod and click quickly on activate I get the errormessage: "esp nicht gefunden: modname.esp" If I make a pause before activating the installed mod this doesnt happen. So far I always thought this happens only for mods with esp files, but probably this problem hits every mod, only the texture replacers etc. wont throw out an MO errormessage. This might have had happen here. Mark this thread as solved.