I cannot type the letter M without having to hit the command key twice and if I don't double click the command key it will just minimize the window i am in. None of my buttons are stuck or anything and i have tried to turn off the minimize shortcut by going into preferences and going to keyboard and mouse and then going to keyboard shortcuts but its no where in there so i can't even turn it off if i wanted. Can anyone help me with this problem? Its a macbook from 2007 by the way