Bugs in monkey C editor (unicode)

Hi,
There is a bug in monkey C editor - I am programming using the same files sometimes on Mac OS, sometimes Windows. When I create some comments using unicode letters (Polish letters like ż, ź, ł, ę...) it is showing fine on this system, but when I move to another eg. from mac os to windows, there are some strange letters:" juĹĽ utworzyĹ‚em ". In the same eclipse environment, when I changed extension to .java, everything is fine (so in different editor). But, when I change editor assigned to .mc, problem still exists... and no text completion...