When I acquired an iMac and then got to the AP Store for the first time to download Mountain Lion, I was in truly deep waters. The install procedure (set up, actually) was simple. Then and there I should have chosen to avoid a sign in. I'm the only user of computer. But I overlooked that detail during setup. Am I destined forever and ever to have to enter password every time my computer goes to sleep? Help. How can I get rid of that security step. Can it be changed so there is no login?