I am playing Metal gear solid 2 and I opened up the configuration settings and I can't find anyway to bind something to mouse. To shoot your gun is set to right mouse in the game but it doesn't show that on the configuration settings. I am trying to bind the Combat button to mouse button 1. Can anyone tell me how to bind something to a mouse button? I am now having the same problem with Metal Gear Solid 1 but this wasn't happening the first time I played it.