I am trying to install a new larger hard drive to my G5. The older hard drive is filled up but was backed up using Time Machine. When I place the Leopard disc I purchased the old hard drive sees the disk and when I start the install it asks to restart the computer. Great. Once it restarts it eventually come to a screen with the Apple logo. At this point both hard drives are connected - the older one and the newer one. What can I do so that I can boot to the Leopard disc so I can start my Time Machine backup on the new larger hard drive? Thank you for looking.