Well, I am finishing the transition from my MacbookPro to my Imac Quad and found a glitch I can not solve and/or understand. The backup of the disk via Time Machine is as slow as it was on my first ever computer: an Epson Abacus 128k ram 1984. Something is slowing it down and I can not find what is it. I've seen on the web this has happened before but long time ago. It does not depend on the drive, surely, I've tried with USB, FW800 and Raid.