Ouch. I've never seen a problem like this. This is how it should look when you first load CWM (nothing mounted):
... but there shouldn't be any "can't mount" errors on the bottom at startup.
I think it's time to flash the sdcard with something different, maybe TWRP 2.2, and see if that is any different. TWRP uses the touch screen instead of the volume and "n" buttons.
Try flashing the sdcard img
to your sdcard: TeamWin Projects - TWRP 2.2 | TeamWin