I do not see where this is a file problem, more of the plotter settings. Are you able to choose a different printer at all or does the plot window freeze immediately after opening? If it does freeze I would try to import the drawing into a new drawing as a block and explode it, this should reset the page setup information which I think is messing with you. the old plot style will come in with the block but should not be active.
Hope that works for you.