Hello people, I tried searching for this and found nothing directly relating to my problem. Sorry if this is a duplicate. I am using a brand new MacBook Pro, one with the glossy screen and glass trackpad. I plugged in my Windows ergonomic keyboard. As such, I had to switch the option and meta keys to be in the correct place. Everything worked fine. After unplugging the keyboard and shutting down the computer to bring home for winter break, the modifier keys are stuck in the reversed position. For instance, I have to press Option Tab to cycle through applications rather than Command Tab. I went back into the System Preferences -> Keyboard -> Modifier Keys and reverted them to normal and it still does this. I rebooted and this did not fix the problem either. Unfortunately I do not have the keyboard (it's at school) so I cannot reattach it to see if that fixes the problem. Any idea how to fix this? Pressing modifier keys is now a huge pain as the option key is not conducive to frequent pressing.