Offline message problem


I know the problem of the offline messages has been raised numerous times, but none of the tips seem to work for me :(. The problem is:

There are two users (1 - sending messages, 2 - receiveing them)

User 1 is sending messages through multi- and singlechat. When both users are online no problems of course. When 1 is online and 2 is offline, 2 is getting offline messages after login (although the messages seem to accumulate…). When 1 sends the message and goes offline, 2 is not getting anything. I’‘m using OfflineMessageManager, but that doesn’‘t help. Does anyone know what’'s wrong? Thanks for any suggestions.