A windows friend of mine was on his girlfriend's macbook attempting to install an xvid codec and somehow assigned the codec to MS Word. We believe this to be the problem causing xvid movies to not work. Since I sent him my functional codec and installed it in the same place that mine is. My codec also adopted the word as its application. Is there a way to unassign any program at all? So it can revert back to being a component file? I tried to go through its properties but I could not find any option for unassinging all apps just for assigning a new app. There must be at least a way to do it through terminal, if not an easier way? Thanks!