OK, so I downloaded an app that deletes the language files not in use...yes, it cleared a lot of space - but now, no Adobe or MS Office works. My conclusion, I must have deleted some and/or all of Rosetta?!?!? So I am assuming I need to reload OS X? I have a new Macbook (Intel). Do I just need to insert the OS X cd, and reboot? Do I need to hold anything while booting up so that it reads from the cd and not the hard drive? Ahh - - I'm such an idiot.... Also, can I choose to not install the language files that I do not need during reinstallation? Thanks so much for the help in advance!