[MPlayer-cygwin] skin problem on windows

[DNA Studios s.r.l.]

Hi Guys,
I am just compiled mplayer for win with mingw and it work well.
I am renamed mplayer.exe in gmplayer.exe, I added my preferred skin 
folder in mplayer dir but the skin work badly.
I have also tried other skins but I have the same problem. I must change 
some parameters in the skin file for Win version?
Thanks.
---------------------
Nicola