i just recently bought an external dvd burner to burn a bootable disc. i know that this boots fine because i tested it on a computer that has an internal dvd drive and it worked fine. my computer has no internal dvd drive, so i have to us ethe xternal one. the problem is, it will not let me boot form this. i think its because it is a usb device and my bios doesnt let me boot form usb. is there any way to get around this? or do i need to update my bios or soemthing like that?