banking

you know the buttons on the editor toolbar that lets you set the banking of each peice of track? well whenever i want to do it it is never lit up so i cant use it. can someone please tell me what i am doing wrong?

you highlite the node at the beginning or end of the track, then bank...but if your already doing that then i have no idea what's wrong.try saving the track, and then re-opening it.. my comp sometimes gets stuck and i have to re-open it.