In my research, it looks like Norton completely changes their configuration user interface just about every year. So I cannot even point you to something general.

Here's a page describing how to fix it for a program called nmsrvc from Pure Networks.

I don't know what that program is, but Norton messes it up. If that is your version, and the dialogs look like that, try the same instructions, only you want to do it for Poser.exe, not the program discussed on that page.

http://www.purenetworks.com/support/faq/150.html

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)