More programs buttton

I was tweaking a skin (for my own use not for distribution) and there is a black highlight that occurs on the more programs button in vista that i would like to get rid of. I can handle the text highlight for that button just fine but, for the life of me i can't turn off the black highlight. The skin is Zing....It's a master skin......I would post a screenshot, but the highlight doesn't get captured. Thanks....