diff --git a/src/main.cpp b/src/main.cpp
index c5084bf..50ce02a 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,5 +1,12 @@
 // simple player for all
 
+//============<configurations>============
+//
+// 'SHOW_SCREEN' : whether if playing info. displayed or not.
+//
+//============</configurations>============
+//#define SHOW_SCREEN
+
 //============<audioooo-param>============
 #define GAIN_MAX 1.0 // if 1.0 is too loud, give max. limit here.
 //============<audioooo-param>============
@@ -67,6 +74,8 @@ void screen() {
   display.setTextColor(SSD1306_WHITE);
   display.setTextSize(1);
 
+#if defined(SHOW_SCREEN)
+
   //line1 - mode line (playing / stopped) + notify mark
   display.setCursor(0, line);
   if (audio.isRunning()) display.println("= playing ===");
@@ -82,6 +91,8 @@ void screen() {
   display.println(screen_filename.c_str());
   line += line_step;
 
+#endif
+
   //
   display.display();
   //
@@ -194,15 +205,13 @@ void setup() {
   //start playing..
   file_index = 0;
   audio.connecttoSD(file_list[file_index].c_str());
-
-  //
-  display.display();
+  screen_filename = file_list[file_index];
 }
 
 void loop() {
   //
   audio.loop();
   //
-  // runner.execute();
+  runner.execute();
   //
 }