Minecraft crashes whenever i press ''esc'', ''enter'', ''e'' running osx

my game crashes whenever i press any of the following keys
''ESC''
''INVENTORY''
''CHAT''
this has happened almost any time that i have tried to push one of these keys. i found that after binding them to other keys it still had the same affect.keep in mind that this has not happened every single time i have played, i have had some, but few successful attempts to play. i have played in every game mode, and on multiplayer/singleplayer. this began somtime in 1.3.2, and has not stopped science. i have no idea what is causing this, if you can please help, i would like to play again soon.