When it extracted you probably mistakenly extracted it to the wrong location meaning the mod files were installed either in the root game dir (where they shouldnt be). Your problem is different really best guess is the mod you installed does not use the modinstaller but is packaged in a. Please help I love this game but hate vanilla! I have a quite similar problem, my mods used to work, yesterday I was playing Mayberry and I just installed Montanna, now none of my mods work, they show up like they used too and now when I select them in the mod menu and hit OK, nothing happens, I waited a long time and then clicked my mouse and the game crashed.