I attempted to install XP this evening and received the standard "disk error...etc etc" message (didn't have SP2). So, I rebooted and held down the "Option" key to get the screen with the two options (OSX or Windows). After I logged back in I removed the Partition created for Windows, but now when I restart the computer automatically tried to boot up in Windows and asks for a boot disk. I have to hold the "Option" key and select OSX (the only option available) each time. How do I set it up so start up automatically boots up in OSX again? Many thanks.