Well i had this issue with the first welcome message from the admin. Although i had read it...it was still showing up 1 new messages. I think i got around it by either deleting it, or when i got a real new message, after it was gone.
Solved! I was right posting the message in the PC forum, once BeardedMosquito wrote me again, I could see both messages. By the way BM, I see you are in Bulgaria, but your profile doesn't tell it!