Apple apps keep disappearing from my system!! A few months ago I noticed that Internet Connect was gone. Then a few weeks later, iCal was missing. Now I just noticed I don't have DVD player anymore. What's happening?! It's getting to the point where I don't trust my system anymore! Disk Utility says SMART status is okay on the drive. No need to tell me that I need to backup -- just please help me figure out what's happening!