--- C:/home/joskis/03_work/04_vgas/src/1/protocol_orig.py	Fri Mar 30 16:26:00 2012
+++ C:/home/joskis/03_work/04_vgas/src/1/protocol.py	Fri Mar 30 16:29:17 2012
@@ -262,9 +262,9 @@
     def channel(self, id):
         yield self.channelLock.acquire()
         try:
-            try:
+            if id in self.channels and not self.channels[id].closed:
                 ch = self.channels[id]
-            except KeyError:
+            else:
                 ch = self.channelFactory(id, self.outgoing)
                 self.channels[id] = ch
         finally: