I was doing software update today when all of a sudden my computer seemed to be overloading from the apps I was running prior...After 10 minutes of "Circle of Death" I performed a emergency shut down. (Probably not the best idea) Afterwards I restarted and was stuck on the main loading screen, (Apple with grey swirling circle) I left this for about 20 minutes came back to check on it and nothing had happened, several restarts with no new conclusion.I popped in the startup disk and ran a diagnostic on it with everything coming back fine...What the heck do I do now? I need my information.....