Mhmm, I never had this happen. Are you sure that when you installed the game, you made sure that if there were alerady files of the same names on your calculator, that you chosen the option to overwrite them, not skip? That could be the problem. Also, I think there's an unknown bug with xLIB causing the commands real(10 to not work all the time on certain calculator models.When this happens, it is best to reset the calc completly (both RAM and archive), then reinstall everything you had on it afterward. On certain calcs, it seems to occur all the time, though, and I am not sure if the source to the problem isn't the same as TI-Boy SE's...