Relatively minor issue - the 'Dismiss' button on the "New" posts screen acts like it works, but the next time I've gone there, the same threads (at least) remain. Though, this brings up another 'concern' ... When browsing Unread posts, there is no obvious way to go back to the remaining Unread posts without going all the way back to Discussion Groups, then selecting Unread again. I could use the 'Back' button on the browser, but that seems to lead to the suddenly 'logged off' issue, so it's not a viable option. There should be a more direct way to do this, I think.