I just don't see a message but it says I have a new one, and my older messages are also gone but I didn't deleted them. And I know that a person send me a message. It looks just that i don't have any message. And my browser is Internet Explorer. Yes maybe I'm blind :)
ah. I think I see why. Under 'Account Settings' - 'Contact Information' you have "Messages are currently sent to." set to 'Mail'. So they're being sent to your hotmail profile email rather than your DM inbox. I've updated the Dev server so it only counts non-deleted messages as new when creating the notifiers.