I'm in a spot of bother... my iMac (intel core duo) was taking forever to start up. I ran disk utility and repaired the disk permissions, but this didn't fix the slow to start issue, so I ran verify disk and encountered an "invalid sibling link" error when trying to verify or repair the start-up disk. Read a bit about this - decided diskwarrior might be the go, but got impatient when I realised I'd have to wait for the CD to arrive as you can't make a boot-disk from the downloaded version. So I decided to run software update - selected the latest security update (2007-06 I think) along with the 10.4.10 update hoping this might help. Really nasty problems started here! The 10.4.10 update failed (first time this has ever happened to me, but I've noticed that a few other people have had this problem updating with the software updater). I was however left with the shutdown/restart option as the security update was succesful. Hit restart - computer restarted very slowly as it has been doing, but then - no mouse or keyboard activity!!!! Everything else is fine - I can see the finder - can see a dialogue asking me if I want airport to keep my passwords etc from the previous version, but the keyboard and mouse are dead. Tried re-starting in safe-mode - but the computer just completely shuts down after about 5 seconds. Can start in single user mode - but still no keyboard. I can boot from OSX cd and tried an "archive and install" re-installation of OSX, but it fails because it gets an error when trying to verify the target volume... Oh - also - no wireless connectivity. Does anyone have any ideas on how I can at least get my keyboard and mouse to work again so I can run diskwarrior on the darn thing and try and fix the sibling-thingo-problem?!!?!? Tools currently at my disposal are a MacBook Pro. And a hammer. Please please please help!