mobile client

Hi;
I am trying to write a mobile jabber client with J2ME but I am having
problem in reading the output from the server. I can send my
information to the server without a problem and the server confirms (I
looked at the records.log). However reading from the server stops
after getting the ID from the server (It stops on the line
InputStreamReader.read().). When I start a session on another device
server disconnects my previous session where I contuniue to receive
disconnection XML from the server.
Is there a way to make a flush from the server?