I was having some issues with ML before the update last week and decided to do a clean install yesterday. Slow shutdown, safari text input problem, and a few other non-critical things. Well today, I finished installing some of my applications I use for school and restored all my files temporarily to the Desktop so I could go through and restore what I want. Well tonight I booted it up to work on some homework only to be presented with the white screen with the Apple and spinning cog. I repaired the disk, repaired permissions, started in safe mode, reset SMC, PRAM, everything I could try, but it still wouldn't make it past. I also tried in verbose and the last thing it says is "FIPS USER SPACE POST." I looked it up and everyone said something different. Some pointed to a hardware failure. I ran a hardware test and everything came out clean, and Windows 7 still boots fine... This is an OSX problem. So I format it again. I just wanted to get my homework done, so I didn't install too much. Specifically: App Store: Xcode + Command Line Tools CCleaner TextWrangler iMovie iPhoto Internet: Flash Java Java JDK Netbeans IDE Firefox Audio Hijack Pro Dropbox Disk: iWork '09 I updated everything and it rebooted just fine. I've only run these so far: Xcode (install command line tools) Netbeans Firefox Safari Audio Hijack Pro Terminal (ssh) I also restored my files to the desktop again. I finished my homework and (thankfully) submitted my homework. I came home to boot it up and it did it again. I let it sit while writing this, and I heard the fans spin down... It finally booted after 15 minutes. I looked through the console and couldn't find anything. So I have a repeatable problem. Oh... And slow shutdown isn't fixed either. :/ ---------- The slow boot up is consistent too... Normally it takes about half a spin to boot, but now it's 15 minutes.