As the title states. Windows 7 is installed, OSX 10.8 (of course,) and Linux Mint 15 are all on the computer. Windows and OSX are on the first hard drive with Linux on the second. REFID does not show the Linux OS while REFIT shows Linux but doesn't get past the screen with the Penguin. Any suggestions? I've been working on this all day and have lost almost all my hope.