boxshroud fixes

src/engine/net/client/ClientMessagePump.java

@@ -1894,7 +1894,10 @@ public class ClientMessagePump implements NetMsgHandler {
                             sameMachine.add(pc);
                     }
                     if(sameMachine.isEmpty() == false){
-                        sameMachine.get(0).isBoxed = false;
+                        if(sameMachine.get(0) != null) {
+                            sameMachine.get(0).isBoxed = false;
+                            ChatManager.chatSystemInfo(sameMachine.get(0), "You Are No Longer Flagged 'Boxed'");
+                        }
                     }
                     break;
                 case POWER: