Hello All, I'm having the odd glitch on my (relatively) new iMac 24" Core Duo in that every now and then it locks up. One time when it locked up it would not reboot until the pram was reset. Speaking to Apple Support stated that this was a software problem. I have run full hardware tests and everything passes. When I have bought new machines Ive always used Migration Assistant to copy over from my old machines so Ive been from Powerbook G4 (Panther), Powerbook G4 (Tiger Upgrade, not clean install), Powermac G5, back to Powerbook after selling the G5 and then onto the Intel iMac. Front Row as never worked on my iMac and I have assumed that it has got corrupted somehow. Apple Support think that something no longer compatible or needs upgrading software wise is causing the problem. I do have a lot of old software that I no longer use. Time for a clean install. I need a bit of advice. I can copy most stuff from my backup drive no problem i.e. iTunes, Parallels, eyetv etc. I'm just worried about iPhoto (06), iCal, Mail, Address Book, as I don't want to loose these settings etc. Are these in a standard location and is it just a case of dropping from the backup to the correct locations?. If so can anyone tell me what they are? Thanks for any help. Looks like tonight is the night for the rebuild. Glyn.