diff --git a/DIAG.h b/DIAG.h
index adb7e07..0595505 100644
--- a/DIAG.h
+++ b/DIAG.h
@@ -24,5 +24,5 @@
 #include "StringFormatter.h"
 #define DIAG  StringFormatter::diag
 #define LCD   StringFormatter::lcd
-#define LCD2  StringFormatter::lcd
+#define LCD2  StringFormatter::lcd2
 #endif
diff --git a/EXRAILMacros.h b/EXRAILMacros.h
index 599664b..868cbc9 100644
--- a/EXRAILMacros.h
+++ b/EXRAILMacros.h
@@ -307,7 +307,7 @@ const  HIGHFLASH  int16_t RMFT2::SignalDefinitions[] = {
 #define KILLALL OPCODE_KILLALL,0,0,
 #define LATCH(sensor_id) OPCODE_LATCH,V(sensor_id),
 #define LCD(id,msg) PRINT(msg)
-#define LCD2(display,id,msg)
+#define LCD2(display,id,msg) PRINT(msg)
 #define LCN(msg) PRINT(msg)
 #define MOVETT(id,steps,activity) OPCODE_SERVO,V(id),OPCODE_PAD,V(steps),OPCODE_PAD,V(EXTurntable::activity),OPCODE_PAD,V(0),
 #define ONACTIVATE(addr,subaddr) OPCODE_ONACTIVATE,V(addr<<2|subaddr),
@@ -379,7 +379,7 @@ const  HIGHFLASH  byte RMFT2::RouteCode[] = {
 #undef LCD
 #define LCD   StringFormatter::lcd
 #undef LCD2
-#define LCD2  StringFormatter::lcd
+#define LCD2  StringFormatter::lcd2
 #undef SERIAL
 #define SERIAL  0x0
 #endif
diff --git a/IO_OLEDDisplay.h b/IO_OLEDDisplay.h
index 7cdb34e..307b7d7 100644
--- a/IO_OLEDDisplay.h
+++ b/IO_OLEDDisplay.h
@@ -138,7 +138,7 @@ protected:
   }
 
   void _loop(unsigned long) override {
-    screenUpdate();
+    //screenUpdate();
   }
 
   void screenUpdate() {
@@ -177,7 +177,7 @@ protected:
   // 
   /////////////////////////////////////////////////
   DisplayInterface* loop2(bool force) override {
-    //screenUpdate();
+    screenUpdate();
     if (_nextDisplay) 
       return _nextDisplay->loop2(force);  // continue to next display
     return NULL;
@@ -208,7 +208,8 @@ protected:
         _buffer[_rowNo*_numCols+_colNo] = ' ';
       _colNo = 0;
       // Mark that the buffer has been touched.  It will be 
-      // sent to the screen on the next loop entry.
+      // sent to the screen on the next loop entry, by which time
+      // the line should have been written to the buffer.
       _rowGeneration[_rowNo]++;
 
     } else if (_nextDisplay) 
diff --git a/StringFormatter.cpp b/StringFormatter.cpp
index 382c484..2341886 100644
--- a/StringFormatter.cpp
+++ b/StringFormatter.cpp
@@ -51,14 +51,13 @@ void StringFormatter::lcd(byte row, const FSH* input...) {
   send2(LCDDisplay::lcdDisplay,input,args);
 }
 
-void StringFormatter::lcd(uint8_t display, byte row, const FSH* input...) {
+void StringFormatter::lcd2(uint8_t display, byte row, const FSH* input...) {
   va_list args;
 
   if (!LCDDisplay::lcdDisplay) return;
   LCDDisplay::lcdDisplay->setRow(display, row);    
   va_start(args, input);
   send2(LCDDisplay::lcdDisplay,input,args);
-  va_end(args);
 }
 
 void StringFormatter::send(Print * stream, const FSH* input...) {
diff --git a/StringFormatter.h b/StringFormatter.h
index 80543b9..4c95ea6 100644
--- a/StringFormatter.h
+++ b/StringFormatter.h
@@ -46,7 +46,7 @@ class StringFormatter
     // DIAG support
     static void diag( const FSH* input...);
     static void lcd(byte row, const FSH* input...);
-    static void lcd(uint8_t display, byte row, const FSH* input...);
+    static void lcd2(uint8_t display, byte row, const FSH* input...);
     static void printEscapes(char * input);
     static void printEscape( char c);