I am using firefox on the 3.1.2 network version.
I saw that I got 2 new emails (bold) but I cannot find them anywhere. I scrolled around, go until the last page and scrolling in between them. BUt no luck.
Even weird is when I right-click the Inbox and select "Mark all as read". After that, it still says 2 new emails. I logoff and login again and it still gives me that. Using different computer doesn't solve it.