Ok... here we go. First of all I have a c2d 2.16 White iMac 20inch. No more applecare. I need help. I am fairly computer savy and don't mind taking it apart if need be. 1. My iMac keeps restarting itself. It doesn't shut down, just restarts... There is no rhyme or reason to it, it always restarts when I try to access the airport at ALL, or plug in the ethernet cord (that causes a kernal panic though,not just a basic restart) but even without touching that it will restart randomly every so often about 4-10 times an hour depending on what i'm doing. Error messages in console include: Launchctl: please convert the following to launchd: /etc/mach_init.d/dashboardadvisory.plist (org.cups.cupsd) unknown key : SHAuthorizationRight (org.ntp.ntpd) unknown key : SHAuthorizationRight (com.apple.usereventagent-loginwindow) Exited: Terminated Error: nodename nor servname provided, or not known (com.apple.usbmuxd) throttling respawn: will start in 2 seconds The harddrive can't be repaired but it says it needs to be (ran diskutility and it says it fails verification and needs repair, but i can't repair it, the button is greyed out) It isn't the RAM as I reseated it and also put in different ram as well to check to see what was up. It has nothing to do with RAM. I am thinking I am going to have to open her up and maybe try a different harddrive? It's a 320 gb seagate 7200 rpm harddrive that was upgraded. The problems didn't start immedately though, could the harddrive be dying? Could this cause random restarts? ANY suggestions as to what the problem could be, PLEASE I will try ANYTHING at this point. Anyone know a good step by step to taking an imac apart? ifixit doesn't have the iMacs on their site 2. I have Leopard installed. I am thinking perhaps going back to Tiger will help. I have a retail Tiger, but I guess that would just be for powerpcs? I do not have the original discs. Anyone know where I could get them? That's about it. ANY help will be very much appreciated. Any connections, files I should delete, things I should do in console. I need step by step help for my poor iMac. thanks.