Today suddenly my Cmd + Tab just died on me, along with the Dock. Seeing as I use ⌘⇥ all the time, I set out for a solution. Being quite early in the morning, I didn’t really think for myself but figured Google could do the job.
Well, Google did as I told and led me to this thread. People were talking about deleting files on the command line, sorting permission and even re-installing the Dock.
Too much work for me, so I turned to IRC, knowing morning here meant evening somewhere else.
ph^: Is there anything similar to explorer in windows that you can kill in os x to make the dock and ⌘⇥ work again?
Infininight: it’s called the “Dock”
And so I fired up Activity Monitor and force killed Dock. Two seconds later my Dock popped up and ⌘ ⇥ worked again.