--- a/src/com/five_ten_sg/connectbot/transport/TN5250.java	Wed Jun 11 13:37:02 2014 -0700
+++ b/src/com/five_ten_sg/connectbot/transport/TN5250.java	Wed Jun 11 14:01:43 2014 -0700
@@ -23,6 +23,7 @@
 import java.net.Socket;
 import java.net.SocketException;
 import java.net.UnknownHostException;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.regex.Matcher;
@@ -71,6 +72,10 @@
     class vt320x5250 extends vt320 {
         private HashMap<Integer, String> mnemonics;
 
+        public vt320x5250() {
+            this(80,24);
+        }
+
         public vt320x5250(int width, int height) {
             super(width, height);
             mnemonics = new HashMap<Integer, String>();