I am having a hell of a time with this and I don't know why. The part I attached needs to have Cut-Extrude2 cut at an angle. I've tried creating a plane at the angle I need but anytime I try changing the angle of the new plane from 45 degrees SolidWorks tells me it can't be done. Not sure if I'm giving it the wrong references to allow me to change the angle or not. Any help is appreciated.

Thanks!

Chris