I have a 12" PB 1.5ghz. I have "switched" all my friends to low end macs who can't afford it, my other friends to new iMacs. I am the mac IT person for them. Fortunately, being a Mac IT person is very easy. UNTIL last night. My last rev. Powerbook with maxed ram on Leopard would NOT let me target disc mode a G4 Cube on Tiger and put on an unused iLife 06 suite of applications. Somehow the Cube did not have iPhoto and since it only has a CD/RW drive, I could not use the iLife DVD on it. So I target disc moded it and firewired it into my Powerbook. Leopard would not even let me run disc utility with the Cube plugged in to the firewire port. In fact, it beachballed and beachballed with iLife 06 disc in the PB's drive and the Cube firewired into the PB. I could not run disc utility. I could not get Ilife to stop beachballing or searching the selected disc from the Cube to install. So I spent FIVE HOURS making a clean copy of Tiger (unused retail disc) on an external hd, then putting a copy of iLife on the hard drive, then plugging this into the Cube's firewire, then making a copy for the Cube. Leopard would not allow any of these functions. I am not happy about it. Very laborious process. My friend just needs an external dvd drive, but I thought I could use my Powerbook and just strap it in with firewire. NO GO on Leopard. Not Happy Steve Jobs and I am your biggest fan.