This is my first Apple computer. It's pretty decent, but as a new user I have a lot of questions and unknowns running around my brain! For one, some of the applications I installed (I did a search for free Apple software as I've never really seen any and needed a resource, I was redirected to the Apple website which has some free, demo, shareware programs available). I installed Blackhole, Disk Drill, My Backuplist, TCPBlock; etc. Some of the programs are disappearing and reappearing in the applications/utilities folders randomly. Not sure why, not sure how to stop it. I was told Apple's don't get viruses though! I have a lot more questions but I guess it should be taken from the beginning point and stopping this four square game with the applications sounds like a good line of scrimmage.