I currently write a commercial app and found out that Wx::RadioButtons work differently under MacOS. These simply ignore the constant &Wx::wxRB_GROUP and slap together all the groups of a dialog. By toying around I found a way how to get several radio buttons (these labeled, round things from only one can be selected) in one dialog (following some style guidelines I guess), just put them on separate Wx::Panel. Than I remembered that Wx::Perl::RadioGroup does this anyway, and using them you also don't have to know about…