So, I've been trying to install W8 for the past 24 hours, off and on, and continue to run into the same problem. I was able to successfully partition my HDD, but when BC restarts to install Windows, it loads the gray screen, then goes black. And I get a warning saying "Not bootable drive - insert boot disk and press any key." Neither my Bluetooth nor USB keyboard have any effect. Nothing happens. I am able to hold 'Option' during startup to boot to OS X, and can select the Windows disc as well. This does nothing. I think it may be caused by the use of an external DVD drive, as my internal Superdrive is toast. System stats: 24-inch Mid 2007 iMac 2.8 GHz Intel Core 2 Duo 1 TB WD partitioned to 500 GB for Windows LaCie USB/Firewire external DVD-RW I've tried connecting the DVD via USB and Firewire, with no change in outcome. Is there any way this will work, without having to shell out cash for a USB flash drive? Any help would be appreciated. EDIT: I forgot to mention I'm trying to install the 64-bit version, but at this point, I'll be happy with either 32-bit or 64-bit.