In discussion replies, a blue dot indicates the reply is new and unread. A white dot indicates a reply is read. When you navigate away from the Discussion or refresh the page, the blue dots will change to white dots indicating the replies are read.
You can tell Curve not to automatically mark your Discussion replies as read so that you can manually control which replies you haven't viewed. By default, manually marking posts as read is turned off.
You can manually mark discussion replies as read or unread at any time as a student or an instructor.
In Course Navigation, click the Discussions link.
Click the Settings icon.
Manually Mark Posts as Read
Click the Manually Mark Posts as Read checkbox.
Click the Save Settings button.