I have a three button mouse, but I can use or set the middle button in GLQuake. Whats wrong?
To use a three button mouse with GLQuake, your Windows mouse driver must support three buttons. Use the Logitech PS/2, Serial or Bus driver instead of the Microsoft or Standard PS/2, Serial or Bus driver. Also, make certain that your Mouse control panel sets the middle button to “middle” and not “double click”.