I did it the way you said and it worked all the way up until loading the world. then it just closed for no reason and now everytime i try to play mod it has a new error that says unhandled exception has occured in your application. i can either click continue or quit, i pressed continue and nothing happened. it also says 'the requested opertation cannot be preformed on a file with a user-mapped section open' no idea what any of this means