It just sounds like you have not enabled the devices to able to boot from…What bios are you using? You can find this by:Clicking "Start" on the Taskbar. Go to "All Programs". Go to "Accessories". Go to "System Tools". Click "System Information". In some bios versions it will not let you change certain settings unless you press a key on the keyboard first. It might tell you which one on the bottom of the screen when you are trying to change the boot sequence. There are always instructions for each section of the bios lurking on the side or botton. Also if you do not save your changes properly it will revert back to previous settings.. Let us know what you find?