Okay, so I was going to the app store to download a game, and when I tried to install it, it said I couldn't because 10.8.2 was required. I then checked my software update and said updates were available. I proceeded to download them and, as usual, it prompted me to restart my computer. I did so, but right before it shut down, a window appeared saying "Some of the updates could not be installed, error occured." I have tried this more than once, but the same thing just happens again. Please help!