"The selected disk has a MBR partition table. On EFI sistems, Windows can only be installed on GPT disks"
"You can't install Windows in this disk. It is possible that the Hardware is not able to boot in this disk. Make sure the disk controller is enabled in the system BIOS"
However, when booting back in to OS X and checking in Disk Utility, the drive is definitely set as GUID Partition Table.
How can I get Windows 8 to see that this is correct? I've tried deleting the partition on Windows 8 setup and recreating it, but it complains it cannot create a partition (Error: 0xf28dbbd0 - Which gives no results in Google!)