Long story short I was able to download the Comcast NSS download from a very helpful person at Norton because comcast has a new .exe called xfinity-master-installer_1.0.0.11 and it would not allow me to install norton. Once I installed norton it detected that the xfinity master installer was a threat since the file was released last week. Has anyone else ran into this problem? the person I spoke with at Norton said he got a few calls in reference to this issue.