I just got this Mac Pro .. used/ refurbed, but without some of the original installed options. AND without any OS install or recover media. I was told "hey you'll never use that stuff anyhow!!" But now.... trying to install the application that was the whole reason for purchasing this Pro... I am up against a pre-existing user Name: with an unknown Password: IS there some advice to prevent this nightmare freom becoming a dead horse ? So far the only faint glimmer of hope is the original Password "hint" . which is cryptic at best and the first 50 or so tries havent been successful and the ideas are getting less likely!!!! Any Ideas???? pls??