This follows on from my earlier question GRUB installation Windows and Ubuntu 13.04. I'm trying to get a Ubuntu and Windows dual boot working.
I have installed GRUB as I was advised to but now no matter which HDD I chose to boot from it always loads up Windows, and GRUB doesn't even seem to appear. Boot without the Windows 7 HDD in gives the message
Reboot and select proper boot device
Out of my depth here, any advice would be great, thanks.