I have a Mac Pro with an ssd as my boot/os drive. Everything has always worked fine until today. I shut down my Mac Pro last night before I went to bed and everything was normal. So today I boot up like normal and I have 3 greyed out question marks in my dock where the 3 iLife apps were. I searched for them i the applications folder and they weren't there. I had to go back into the App Store and redownload all 3 of them. Why did my mac pro just randomly decide to delete iLife? Any thoughts? Does it have anything to do with the ssd? I mean I haven't done anything different lately. No os installs or anything.