Is there a way to quickly restart system processes on a Mac without having to sleep and then wake the system? Why do I have to do this? Because the stupid sound controls stop working after long periods of sleep (usually overnight) and the only way to get them back is to sleep and then quickly wake the system. But it's a pain because you have to re-enter your password each time. Hope someone can help - Apple are fully aware of the problem as there's lots of threads and posts about it on Apple's and other forums.