I bought a new iMac with Leopard installed a few weeks ago. I want to erase the HD on my iMac completely and uninstall Leopard, because I want to install it on my Macbook Pro that has Tiger as its OS instead. I'll have to erase the HD and uninstall Tiger on my Macbook Pro, then install Tiger on my Imac as well. How do I this? I have all the disks/software... thanks