InstalledSnow Leopard (retail box) onto a last-gen Aluminum MacBook Pro (2.6Ghz model) Did a time machine backup. Put in CD and upgraded. Rebooted with no peripherals plugged in and I get a kernel panic. There's only one user on this machine so I can't see if it's an account problem. I did the same thing on both my Macbook Air and 17" MacBook Pro. Question: Do I have to now Reinstall Leopard (fresh) Then update Snow Leopard Then restore from Backup? OR install Leopard recover from time machine backup Then install Snow Leopard I don't have all day and really don't want to screw up the process. Is there any thing else that might say why this kernel panic is happening?