I am trying to install the recent upgrade but after my last ugly upgrade experience I am afraid to make a mistake. Do I need to uninstall my current version before installing a new one? If I do, is it just double clicking the uninstall icon and then the install or are there options that I will have to select in this process. Thanks Ari Macbook Pro 2.16 core duo + 2GB ram Ps: When giving instructions, please assume I am a computer moron or that I am a computer user (20+ years on a computer) who knows how to use software but has zero knowledge of troubleshooting, etc.