Camera Pan Problem

[Spartan Kobe]

I'm having trouble with the camera pan. You know how you press ctrl to move the camera around? It keeps confusing the right ctrl with the left one. I have num pad 0 and right ctrl as my camera pans to left and right. I even put the "look about" on another key and it still keeps thinking that it's the right ctrl. How do I fix this? Even when I put the camera pans  as other buttons they still don't work. I accidentally deleted the texture packs while I had the game open and then the problem happened and I don't know how to fix this.