Well, really two scenarios occur. (a) I start the Nehrim launcher from inside the folder and active all three nehrim data files and click start. The oblivion start menu appears, but the start game option, among others, is faded out and unable to be clicked. (b) I start the oblivion launcher which takes me to the oblivion start menu where all options are in bold and clickable. However, when I click on data files, the only files available are the oblivion and oblivion expansion data files. No Nehrim files. So I am able to start oblivion from lauching the oblivion launcher but it only takes me to the original oblivion game.