Hi, I have quite an odd matter with my mac pro. It looks like the Shift Key is always on so everything reacts that way. I first thought it was the keyboard, so I cleaned it etc. but it's not ! I tried that keyboard on another mac and it works perfectly. The Keyboard Viewer shows that the 2 Shift Keys are ALWAYS turned on even if my keyboard is unplugged ! I searched quite a bit but I can't find anything like that. Please, help me.