Been away for awhile, but it appears that you have Tk working now! I don't have to do anything special for the Mac anymore because my Mac guys are power users and they run Windows underneath the Mac OS on some honking machines. How they do this, I don't know. But they can run the Windows .exe that I give to the Windows only guys! So this is good for me as I don't have to worry. But yes, Perl Tk is multi-platform.