Users do not receive messages

Some users stoped of recive message during to day and only come back it receive message after be disconnected and reconnected in the pandion, and the client delay for bring up to date the status of the users.

My Server have 1GB of RAM and the Java Memory was increased for 512MB using 30% it. I’'m utilizing the Openfire 3.3.0, DB MSSQL 2000 and client Pandion 2.5, with 130 users connected simultaneously.

I need to resolve this problem with most urgent. Many Thanks.

I can confirm this: http://www.igniterealtime.org/forum/thread.jspa?threadID=26491&tstart=0

The version I tried from 3.3.0 beta to 3.3.1.