diff --git a/SerialPortWindow.pde b/SerialPortWindow.pde
index 09b02a8..98f8d8d 100644
--- a/SerialPortWindow.pde
+++ b/SerialPortWindow.pde
@@ -31,9 +31,9 @@ ControlFrameSimple addSerialPortControlFrame(String theName, int theWidth, int t
 
   ScrollableList sl = p.cp5().addScrollableList("dropdown_serialPort")
     .setPosition(10, 10)
-    .setSize(150, 100)
+    .setSize(150, 150)
     .setBarHeight(20)
-    .setItemHeight(20)
+    .setItemHeight(16)
     .plugTo(this, "dropdown_serialPort");  
 
   sl.addItem("No serial connection", -1);
@@ -61,9 +61,11 @@ ControlFrameSimple addSerialPortControlFrame(String theName, int theWidth, int t
 void dropdown_serialPort(int newSerialPort) 
 {
   println("In dropdown_serialPort, newSerialPort: " + newSerialPort);
+
+  // No serial in list is slot 0 in code because of list index
+  // So shift port index by one 
   newSerialPort -= 1;
   
-  
   if (newSerialPort == -2)
   {
   }