I'm attempting to install v13.04 alongside of Windows 8 and when I get to the option to "Install with Windows 8 / Replace Windows 8 / Something Else," after selecting Install with Windows 8 the "Continue" button turns into a "You must restart" button. Once clicked, the system: begins the shutdown process; ejects the CD tray; and then sits there... never fully shuts down, never comes back up. From here, I've tried: simply pushing the tray back in; pushing the tray back in and hard rebooting (the only option, as I'm sitting a black screen with no response); leaving the tray out and hard rebooting; doing nothing, taking a shower, and coming back hoping for a change... with no luck.
Any help would be greatly appreciated. I've tried searching and this sounds like it would happen to more people than myself, but I'm struggling to find any results.