if the current protocol status is offline and user chooses offline from the status list do nothing

src/net/java/sip/communicator/impl/gui/main/presence/PresenceStatusSelectorBox.java

@@ -150,7 +150,7 @@ public void actionPerformed(ActionEvent e) {
                             }
                             setSelectedStatus(status);                                
                         }
-                        else {
+                        else if (status.isOnline()){
                             lastSelectedStatus = status; 
                             loginManager.login(protocolProvider);
                         }

src/net/java/sip/communicator/impl/gui/main/presence/SimpleStatusSelectorBox.java

@@ -116,15 +116,18 @@ public void actionPerformed(ActionEvent e)
             }
         }
         else {
-            try {
-                mainFrame.getLoginManager()
-                    .setManuallyDisconnected(true);
-                protocolProvider.unregister();
-            }
-            catch (OperationFailedException e1) {
-                logger.error("Unable to unregister the protocol provider: "
-                        + protocolProvider
-                        + " due to the following exception: " + e1);
+            if(protocolProvider.isRegistered())
+            {
+                try {
+                    mainFrame.getLoginManager()
+                        .setManuallyDisconnected(true);
+                    protocolProvider.unregister();
+                }
+                catch (OperationFailedException e1) {
+                    logger.error("Unable to unregister the protocol provider: "
+                            + protocolProvider
+                            + " due to the following exception: " + e1);
+                }
             }
         }
     }