asterisk users - Jan 2012 - Queue member is permanently BUSY

Hi, we have a queue with some 20 agents.  Agents are defined statically 
in queues.conf (in an include, actually).  One of the agents is showing 
up as "NOT AVAILABLE" in "queue show..." when his client is
disconnected
from Asterisk.  However, the moment his system gets connected, his 
status in "queue show..." changes to "BUSY", even though
he's not taking
any calls.

We've tried both soft and hard phones as clients for this agent, but the 
problem remains the same.  Any help appreciated.

Regards,

-- Raj
-- 
Raj Mathur                          || raju at kandalaya.org   || GPG:
http://otheronepercent.blogspot.com || http://kandalaya.org || CC68
It is the mind that moves           || http://schizoid.in   || D17F