Hi there, I hope you can help. I'm currently writing this from studio. Basically we have an issue with a Mac Book Pro. Our installation CD is missing. We need to reinstall the OS from scratch as the account, and pretty much everything else is locked in my prior employee's name, so it seems. The computer is running 10.6.8, we're wondering if we purchased OSX Mountain Lion from the App Store, that we'd be able to reconfigure the computer upon installation? Wipe the HD and start afresh with a new account etc. Is this possible? Any help would be appreciated.