Trouble running applications?

I was confused and yet troubled to why iPhoto was not responding and co-operating and while tampering with preferences and after a bit of agrivation, called Apple who said to go to Finder/Macintosh HD/Preferences/com.apple.iPhoto.plist and drag that file to the desktop and then try opening iPhoto. Guess what? It worked beautifully and no trouble any more, Thanks to Apple! Try it yourself…