In Vista 4.1.2 Discussion topic management is just plain annoying. The list:
1. Even if you have selected to display new messages at the top of the postings list, new messages appear last. (Display new messages at the top is the default setting for Discussion postings as well).
2. Even when choosing to display only NEW posts, all messages are displayed anyway.
3. The Main Discussion page indicates when a Topic has new messages, clicking into the Topic, removes that “new” message indicator, even if one doesn’t read the message itself. The Expectation is that the NEW message indicator would persist until the user actually reads the message.
(These annoyances are experienced in Vista 4.1.2)