Hi Xon,
the count should be updated when you view/read a conversation.
Yes, you worded it much better than I did
If I remember, it will "add" more "unread's", but as I go through and read my conversations, I am still left with this "one" unread that I can not find anywhere. So, it must be reading a false indicator from somewhere. And thank you very much for your help.
Here is a list of other add-ons I have:
Advanced search 2.7
Allows searching thread titles and post content using exact text.
Conversation Essentials 2.2.1
Vital functions and features for viewing and managing personal conversations
Country Flags by IP Address 2.0.12
Displays the flag of the country members are in using their IP Address location
Cover photo 1.3
Allows members to upload a cover photo.
Email log 1.6
Shows emails that have been sent from your forum.
Forum statistics plus 1.5
Displays a Forum statistics plus widget.
Rotate 1.3
Easily rotate any attached image in a post.
Social Groups 2.1.16
Social groups for your site.
Weekly digest 3.1
Sends an email to your members every week showing the most popular topics.
XenForo Media Gallery 2.1.5