OS X 10.7 freezing on boot-up. How to diagnose?
I noticed that my MacBook Pro took an unusally long time to boot up this morning. After startup completed, I noticed that no domain names were resolving, although my LAN was visible to me. When I tried to open System Preferences to see what might be wrong, System Preferences hung. I then restarted, and now restart is hung.
Where do I go from here, before I go to the Apple Store?