Cleric stance mouse button 3 ?

[Alistaire]

works fine for my mouse, could possibly be your inter-connect with your specific mouse. Some map their keys differently. If all else fails you can prolly make a macro on your pc and set it to emulate Mouse 3

I don't see how, when you keybind you press the button you're going to use. So whatever the game recognizes when you hit that it should always recognize it as being that same button.