It does it to me if in not logged in. If I am on as an anon it will show all posts as new. when I go into read one forum and come back, they are all marked read
Donate to UBBDev today to help aid in Operational, Server and Script Maintenance, and Development costs.
Please also see our parent organization VNC Web Services if you're in the need of a new UBB.threads Install or Upgrade, Site/Server Migrations, or Security and Coding Services.