Thank you for that information.
I'm betting that you have the Constant Guard portion of the suite installed.
The cure is simple if it is.
Uninstall the Guarded ID
which installed with the Constant Guard portion.
(You can also uninstall the Constant Guard feature if removing Guarded ID does not work) Removing Guarded ID and Constant Guard will NOT remove Norton.
Control Panel/Programs and Features.
Look for Guarded ID and get rid of it. Reboot your computer.
Let me know if the uninstall resolved the issue.
edit to add: if you see Xfinity Toolbar listed get rid of it because it can be flaky and cause issues which clear up when uninstalled.
Bonus info: Comcast does not have a stellar history when it comes to branded software. They have something called Easy Solve which actually solves nothing. I have reviewed the program and my review does not praise it. If interested let me know and I can give you a link to the review.
Just in case you don't know, Comcast has a help forum for customers. I can also provide you details about it if interested.
edited to correct which feature should be uninstalled.
Edited by Queen-Evie, 22 October 2012 - 01:54 PM.