Queue Status in SMQ2 = RUNNING, but Stuck.

I have a queue that sometimes gets stuck in SMQ2 in status RUNNING (for no apparent reason).

If I activating the queue manually (as suggested in

http://help.sap.com/saphelp_nw04/helpdata/en/d9/b9f2407b937e7fe10000000a1550b0/frameset.htm)

usually solves the problem.

Therefore, this queue processes messages 24x7 and cannot get stuck for more than 5 minutes.

Question n1)Is there a way I can do this automatically (scheduling a JOB) (itu2019s a specific queue, that is only used for this single process)?

Question n2) Sometimes, after activating the queue again, the message continues in status RUNNING, and the only solution is to delete the message and activating the queue manually (when I do this, after processing every message in the queue, when new messages begin to arrive, the queue goes to status READY for a LONG time.) Does anyone knows whats going on?

obs.: The message is ALWAYS processed successfully, and there is no problem to process it 2 times.  The only thing that cannot happen is STOP the process.

Thank you.

At.,

Bernardo Tavares Braga