Can't change the boot order

[Reece]

I'm getting to the point of jumping on this laptop (Asus G771J), I thought I'd try backing up the system with Ghost and later boot from the ABUNTU DVD but I can't even get this thing to boot off a DVD!!!
The BIOS is "Bios Aptio Setup Utility - American Megatrends"
and has the following options for the Boot menu:

Boot Configuration
Fast Boot .........................Enabled
Launch CSM ......................Disabled


Boot Option Priorities
Boot Option #1 ................. [Windows Boot Manager]


Add New Boot Option
> Delete Boot Option

There is a Security Menu that has, as well as passwords, 2 options:

I/O Interface Security

Secure Boot Menu

Can anyone show me where to go/what to do?