I recently installed a partition to my mac mini using BootCamp, but leaving the Windows installation til a later date as I'd left the authentication info in the studio! On booting up my mac the next day I'm greeted with a flashing missing OS symbol instead of the apple logo. I've tried resetting the mac or trying to force it to start a network startup up but to no avail. I attempted to run from the installation disc but it isn't responding to holding don 'c' to run from the disc. However I'm running 10.5, but that was an upgrade from a colleagues disc and the only installation disc I have is 10.4. I can get that disc but may take time! The only interactivity I can get from the keyboard is upon pressing 'option' I'm asked to enter a password, but I don't know what password it's after?! If anyone could give me hints or assistance I'd be extremely grateful, as I'd hate to think I'm now the proud owner of a £400 paper-weight! K.