Hey, Okay - I'm an Apple tech at the company that I work for. Last week our cheif exec brought his MacBook Pro (Late 2009) in because it wouldn't boot. I re-installed the OS and sent him away happy. The next day, he returned with the same issue. The laptop wouldn't boot. So I booted in Verbose mode and see that it's getting stuck at: AirPort: Link Up on en1 AirPort: RSN handshake complete on en1 Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d, 2300, 0de1, 0300, 45e1, 0000] en1 duplicate IP address 169.254.189.55 from address 10:9a:dd:6e:21:00 en1 duplicate IP address 169.254.189.55 from address 10:9a:dd:6e:21:00 en0 duplicate IP address 169.254.189.55 from address e0:f8:47:0d:57:b4 en0 duplicate IP address 169.254.189.55 from address e0:f8:47:0d:57:b4 If I remove the ethernet cable it only gets as far as 'Airport: RSN handshake complete on en1' So, I was told to order a new MacBook Pro in order to get him back online asap. The new one arrived, I set it up and a week later he's back - with the same issue. I've formatted his old laptop and have been using it since it was replaced with no issues at all. He is on a mobile network account, bound to an Xserve. He has an iMac also on a network account and bound to the same server - he has no issues with this. All I know is that Entourage crashed and he restarted, since then it hasn't worked. His mailbox is around 4GB in size. I would appreciate any help anyone can throw my way. Thanks.