I'm well sure this topic has come up before, but I've never seen it answered. After waking my Mac mini from sleep, my keyboard won't respond at all. I tried: - Plugging it into a different USB port, including the one on my monitor - Using the mouse to wake the computer up from sleep instead of the keyboard - Switching to a different, wired keyboard (had a wireless before) Both keyboards used were off-brand (non-Apple) keyboards, but I've had a couple before these two that never had a problem whatsoever. Anyone ever sorted this out? Cheers.