windows mail and Norton

This is my first post here.

My operating system is VISTA. I was having problems with Windows Mail...the spam emails do not go in the junk folder but instead are in my "inbox".

After spending a lot of time on line with tech support, I was then told that NIS is only partially compatible with Windows Mail.

 

I am wondering why I was not told this from the beginning. It's only after 1 hr + on the phone (several calls) that I am told it's not compatible.

Karina