Thanks SSymes and Howie_J, this helped.
Now I have an other problem. There are 25 BB users, all of them with the same environment (Domino 6.5.3, Notes 6.5.3, BB 7290). For 24 of them everything works fine. For the last one the Lotus Notes folders are not replicated to the handheld. He receives the messages to the public mail folder on the handheld, but none of his folders are replicated to the BB. I removed him with the erase data end disable handheld option, deleted from the BlackBerry User Profile database, and deleted his profile datase. After adding the user to the BB I found that 5 of his 70 folders were replicated to the handheld. I've did this once again, and this time none of his folders appeared on the handheld.
Any idea is appreciated.