User blog comment:DavidMC123/Unable to install patch for 1.11/@comment-1712053-20100429234602

Hmmm....I have seen this problem before. I had to uninstall The Sims 3 completley, but, luckily, thanks to A morris, I had a save back-up file. I re-installed it and I installed the patch. Game works fine. YAY!