I have the same problem. I loaded Norton Antivirus 2010 and Norton Utilities and now I get the constant popup error message saying "An installation package for the product Sonic Activation Module cannot be found." Then I get the message "Try the installation using a valid copy of the installation package Activate.MSI." It is on a constant loop, even when I click cancel and x out. I tried to remove/uninstall all Sonic products from my programs, but that didn't help. I am not using Sonic and don't need it, as far as I know. PLEASE HELP.