diff --git a/MicroDexed.ino b/MicroDexed.ino
index 746ea66..31098f4 100644
--- a/MicroDexed.ino
+++ b/MicroDexed.ino
@@ -100,7 +100,7 @@ uint8_t active_voices = 0;
 #ifdef SHOW_CPU_LOAD_MSEC
 elapsedMillis cpu_mem_millis;
 #endif
-config_t configuration = {0xffff, 0, 0, VOLUME, 0.5f, DEFAULT_MIDI_CHANNEL};
+config_t configuration = {0xffff, 0, 0, VOLUME, 0.5f, 0, DEFAULT_MIDI_CHANNEL};
 bool eeprom_update_flag = false;
 value_change_t soften_volume = {0.0, 0};
 value_change_t soften_filter_res = {0.0, 0};
@@ -820,29 +820,7 @@ void set_volume(float v, float p)
 {
   configuration.vol = v;
   configuration.pan = p;
-
-  /*
-    #ifdef DEBUG
-    Serial.print(F("Setting volume: VOL="));
-    Serial.print(v, DEC);
-    Serial.print(F("["));
-    Serial.print(configuration.vol, DEC);
-    Serial.print(F("] PAN="));
-    Serial.print(F("["));
-    Serial.print(configuration.pan, DEC);
-    Serial.print(F("] "));
-    Serial.print(pow(configuration.vol * sinf(configuration.pan * PI / 2), VOLUME_CURVE), 3);
-    Serial.print(F("/"));
-    Serial.println(pow(configuration.vol * cosf( configuration.pan * PI / 2), VOLUME_CURVE), 3);
-    #endif
-
-    dexed->fx.Gain = v;
-
-    // http://files.csound-tutorial.net/floss_manual/Release03/Cs_FM_03_ScrapBook/b-panning-and-spatialization.html
-    volume_r.gain(sinf(p * PI / 2));
-    volume_l.gain(cosf(p * PI / 2));
-  */
-
+  
   dexed->fx.Gain = v;
 
   uint16_t tmp = v * 1023.0 + 0.5;
@@ -867,10 +845,11 @@ void set_volume(float v, float p)
   // http://files.csound-tutorial.net/floss_manual/Release03/Cs_FM_03_ScrapBook/b-panning-and-spatialization.html
   volume_r.gain(tmp3 * sinf(tmp2 * PI / 2));
   volume_l.gain(tmp3 * cosf(tmp2 * PI / 2));
-  /*  if (configuration.mono == 2)
-      volume_l.gain(0.0);
-    else if (configuration.mono == 3)
-      volume_r.gain(0.0); */
+  
+  if (configuration.mono == 2)
+    volume_l.gain(0.0);
+  else if (configuration.mono == 3)
+    volume_r.gain(0.0);
 }
 
 // https://www.dr-lex.be/info-stuff/volumecontrols.html#table1
@@ -879,7 +858,6 @@ inline float logvol(float x)
   return (0.001 * expf(6.908 * x));
 }
 
-
 /******************************************************************************
    EEPROM HELPER
  ******************************************************************************/
diff --git a/UI.hpp b/UI.hpp
index 638a43a..192551b 100644
--- a/UI.hpp
+++ b/UI.hpp
@@ -191,7 +191,7 @@ void lcdml_menu_control(void)
           break;
         case MENU_VOICE:
 #ifdef DEBUG
-          Serial.println(F("State: MENU_VOICE, Encoder left down"));
+          Serial.println(F("State: MENU_VOICE, Encoder left up"));
 #endif
           switch (menu_voice)
           {
@@ -204,7 +204,7 @@ void lcdml_menu_control(void)
               }
               break;
             case MENU_VOICE_SOUND:
-              if (configuration.voice < 31)
+              if (configuration.voice < MAX_VOICES)
                 configuration.voice++;
               else
               {
@@ -212,10 +212,10 @@ void lcdml_menu_control(void)
                 {
                   configuration.bank++;
                   configuration.voice = 0;
-                  load_sysex(configuration.bank, configuration.voice);
-                  get_voice_names_from_bank(configuration.bank);
                 }
               }
+              load_sysex(configuration.bank, configuration.voice);
+              get_voice_names_from_bank(configuration.bank);
               eeprom_write();
           }
           UI_func_voice_selection(0);
@@ -244,7 +244,7 @@ void lcdml_menu_control(void)
           break;
         case MENU_VOICE:
 #ifdef DEBUG
-          Serial.println(F("State: MENU_VOICE, Encoder left up"));
+          Serial.println(F("State: MENU_VOICE, Encoder left down"));
 #endif
           switch (menu_voice)
           {
@@ -265,10 +265,10 @@ void lcdml_menu_control(void)
                 {
                   configuration.bank--;
                   configuration.voice = 31;
-                  load_sysex(configuration.bank, configuration.voice);
-                  get_voice_names_from_bank(configuration.bank);
                 }
               }
+              load_sysex(configuration.bank, configuration.voice);
+              get_voice_names_from_bank(configuration.bank);
               eeprom_write();
           }
           UI_func_voice_selection(0);
@@ -344,9 +344,8 @@ void lcdml_menu_control(void)
 #ifdef DEBUG
       Serial.println(F("Volume +"));
 #endif
-      if (configuration.vol < 0.95)
+      if (configuration.vol < 0.96)
       {
-        //set_volume(configuration.vol + 0.05, configuration.pan);
         soften_volume.diff =  0.05 / SOFTEN_VALUE_CHANGE_STEPS;
         soften_volume.steps = SOFTEN_VALUE_CHANGE_STEPS;
         eeprom_write();
@@ -369,9 +368,8 @@ void lcdml_menu_control(void)
 #ifdef DEBUG
       Serial.println(F("Volume -"));
 #endif
-      if (configuration.vol > 0.05)
+      if (configuration.vol > 0.04)
       {
-        //set_volume(configuration.vol - 0.05, configuration.pan);
         soften_volume.diff =  -0.05 / SOFTEN_VALUE_CHANGE_STEPS;
         soften_volume.steps = SOFTEN_VALUE_CHANGE_STEPS;
         eeprom_write();
@@ -731,17 +729,18 @@ void UI_func_volume(uint8_t param)
 
   // update LCD content
   LCDML.DISP_clear();
-  lcd.setCursor(0, 0); // set cursor
-  lcd.print("Volume"); // print change content
-  lcd.setCursor(0, 1); // set cursor
-
+  lcd.show(0, 0, 8, "Volume: ");
+  lcd.show(0, 9, 3, configuration.vol * 100.0 + 0.5);
+  lcd.setCursor(1, 1);
   for (uint8_t i = 0; i < LCD_cols; i++)
   {
-    if (i < int(LCD_cols * configuration.vol + 0.5))
+    if (i < int((LCD_cols - 2) * configuration.vol + 0.5))
       lcd.print("*");
     else
       lcd.print(" ");
   }
+  lcd.show(1, 0, 1, "[");
+  lcd.show(1, 15, 1, "]");
 }
 #endif
 #endif
diff --git a/config.h b/config.h
index 78a562c..34b772f 100644
--- a/config.h
+++ b/config.h
@@ -203,6 +203,7 @@ struct config_t {
   uint8_t voice;
   float vol;
   float pan;
+  uint8_t mono;
   uint8_t midi_channel;
 };