Button Appearance

Hi everyone,

I apologize if this has already been addressed. I have a small issue with user created buttons. For some reason buttons I create have the appearance of custom controls rather than the Mac style buttons. Every now and then a button turns out with the right appearance but I find it almost impossible to reproduce. I tried all the options in the appearance option for buttons but nothing did the trick. Also, I changed the native GUI settings in Igor's Misc settings. Has anyone had this problem?

Cheers,
Constantin