I'm running on a G5 iMac that suddenly no longer will boot properly. I came back to my computer, undimmed the display, and the computer hung for 10 minutes. I reset it and got to the blue screen before login window (auto login is off), and nothing ever loaded, even after a 20 minute wait. So I tried safe boot, which worked, but now I'm unsure how to return my computer to its normal state. I'm thinking it's possible a power surge blew out a component of my system that safe boot turns off (airport card, sound card, something). I went through the articles on Apple's website: http://docs.info.apple.com/article.html?artnum=107392 and I removed all non-apple kernel extensions. I'm wary of removing more extensions than those I know are not system critical (e.g. IOBluetoothFamily.kext). Anyone know if this is the right approach? Is it possible a blown airport card could cause my system to hang on startup? All my haxies and other third-party system mods have already been removed, and those aren't the problem.