I am determined to get used to my mac. One thing I've noticed, is that there seems to be activity running in the background and I can't figure out how to figure out what's running or to stop it from doing whatever it's doing. For example, I think it's trying to update. When I went on the app store, it says three updates available. But when I push command tab, there are no apps running. My arrow keys and tab key aren't working all the time. I have to keep trying to interact with things so that I can scroll through them. It's like my cursors and keyboard refused to focus consistently. Is there a way to see what processes may be running in the background? What is wrong with my keyboard? I know it's not broken. It's probably just some little setting has gotten changed. Also, is there a way to disable that Mission control?