I have a Macbook Pro running Mountain Lion. I was playing around trying to get a few old printers to work so I tried to install CUPS. I enabled the root user, logged in, ran the >make install< command, looked up a guide in chrome, logged out, disabled the root user. That's it. Now several applications, including Chrome, Skype, Pages don't work anymore. I've tried the standard log out log in, restart, reinstall Chrome, but I keep getting the same error message: "Google Chrome cannot be opened because of a problem." CUPS could be to blame too. (I'm not sure if it even works.) How do I proceed?