Not sure what the prolem is. I've even gone back to the Digital Tutors tutorials and cant see anything I'm missing. But when I select the tool and click on a border edge, nada. I'm using Maya 2010 on a Windows machine at school. It's the licensed educational version but I've never heard that this tool doesn't work because of that. I've reset the tool, played with the settings. --- might as well be poking the screen with my finger for all the good it does.