diff --git a/README.md b/README.md
index 6b004d8..c830306 100644
--- a/README.md
+++ b/README.md
@@ -234,6 +234,16 @@ Work is in progress...
 
 ---
 ## Version history
+### 0.9.420
+**!!! a [full update](#update-over-web-interface) with Sketch data upload is required. After updating please press CTRL+F5 in browser !!!**
+- added screensaver mode during playback, configurable via the web interface, pull request[#129](https://github.com/e2002/yoradio/pull/129)
+- added blank screen mode to screensaver, configurable via the web interface, pull request[#129](https://github.com/e2002/yoradio/pull/129)
+  Thanks to @trip5 for the amazing code!
+- speeding up indexing of SD cards (advice - don't put all files in one folder)
+- i don't remember (honestly) why the AsyncTCP server worked on the same core with the player, now it works on the same core with the display
+  `#define CONFIG_ASYNC_TCP_RUNNING_CORE 0`
+- bug fixes
+
 ### v0.9.412
 **!!! a [full update](#update-over-web-interface) with Sketch data upload is required. After updating please press CTRL+F5 in browser !!!**
 - added mDNS support, configurable via the web interface, pull[#125](https://github.com/e2002/yoradio/pull/125)
diff --git a/yoRadio/src/AsyncWebServer/AsyncTCP.h b/yoRadio/src/AsyncWebServer/AsyncTCP.h
index ca57ff8..c898bf0 100644
--- a/yoRadio/src/AsyncWebServer/AsyncTCP.h
+++ b/yoRadio/src/AsyncWebServer/AsyncTCP.h
@@ -32,7 +32,7 @@ extern "C" {
 
 //If core is not defined, then we are running in Arduino or PIO
 #ifndef CONFIG_ASYNC_TCP_RUNNING_CORE
-  #define CONFIG_ASYNC_TCP_RUNNING_CORE 1 //any available core (-1)
+  #define CONFIG_ASYNC_TCP_RUNNING_CORE 0 //any available core (-1)
 #endif
 
 #ifndef CONFIG_ASYNC_TCP_USE_WDT
@@ -43,7 +43,7 @@ extern "C" {
   #define XTASK_MEM_SIZE  6144 // 8192 / 2
 #endif
 #ifndef XTASK_PRIOTITY
-  #define XTASK_PRIOTITY  3 //3
+  #define XTASK_PRIOTITY  5 //3
 #endif
 #ifndef ATCP_TASK_DELAY
   #define ATCP_TASK_DELAY  2
diff --git a/yoRadio/src/core/display.cpp b/yoRadio/src/core/display.cpp
index ce058c1..0b87fed 100644
--- a/yoRadio/src/core/display.cpp
+++ b/yoRadio/src/core/display.cpp
@@ -534,8 +534,14 @@ void Display::_time(bool redraw) {
     config.setBrightness();
   }
 #endif
-  if(config.isScreensaver && network.timeinfo.tm_sec % 60 == 0)
-    _clock.moveTo({clockConf.left, static_cast<uint16_t>(random(TFT_FRAMEWDT+clockConf.textsize, (dsp.height()-dsp.plItemHeight-TFT_FRAMEWDT*2))), 0});
+  if(config.isScreensaver && network.timeinfo.tm_sec % 60 == 0){
+    #ifdef GXCLOCKFONT
+      uint16_t ft=static_cast<uint16_t>(random(TFT_FRAMEWDT, (dsp.height()-dsp.plItemHeight-TFT_FRAMEWDT*2-clockConf.textsize)));
+    #else
+      uint16_t ft=static_cast<uint16_t>(random(TFT_FRAMEWDT+clockConf.textsize, (dsp.height()-dsp.plItemHeight-TFT_FRAMEWDT*2)));
+    #endif
+    _clock.moveTo({clockConf.left, ft, 0});
+  }
   _clock.draw();
   /*#ifdef USE_NEXTION
     nextion.printClock(network.timeinfo);
diff --git a/yoRadio/src/core/options.h b/yoRadio/src/core/options.h
index 13cb532..875bb39 100644
--- a/yoRadio/src/core/options.h
+++ b/yoRadio/src/core/options.h
@@ -1,7 +1,7 @@
 #ifndef options_h
 #define options_h
 
-#define YOVERSION "0.9.412"
+#define YOVERSION "0.9.420"
 
 /*******************************************************
 DO NOT EDIT THIS FILE. 
diff --git a/yoRadio/src/core/sdmanager.cpp b/yoRadio/src/core/sdmanager.cpp
index fa1c68f..1b70abd 100644
--- a/yoRadio/src/core/sdmanager.cpp
+++ b/yoRadio/src/core/sdmanager.cpp
@@ -60,41 +60,50 @@ bool SDManager::_endsWith (const char* base, const char* str) {
   return (strncmp(p, str, slen) == 0);
 }
 
-void SDManager::listSD(File &plSDfile, File &plSDindex, const char * dirname, uint8_t levels){
-  File root = sdman.open(dirname);
-  if(!root){
-    Serial.println("##[ERROR]#\tFailed to open directory");
-    return;
-  }
-  if(!root.isDirectory()){
-    Serial.println("##[ERROR]#\tNot a directory");
-    return;
-  }
-  File file = root.openNextFile();
-  uint32_t pos = 0;
-  while(file){
-  	vTaskDelay(2);
-    bool fid = file.isDirectory();
-    const char * fp = file.path();
-    const char * fn = file.name();
-    if(fid){
-      if(levels && !_checkNoMedia(fp)){
-        listSD(plSDfile, plSDindex, fp, levels -1);
-      }
-    } else {
-      if(_endsWith(strlwr((char*)fn), ".mp3") || _endsWith(fn, ".m4a") || _endsWith(fn, ".aac") || _endsWith(fn, ".wav") || _endsWith(fn, ".flac")){
-        pos = plSDfile.position();
-        plSDfile.print(fn); plSDfile.print("\t"); plSDfile.print(fp); plSDfile.print("\t"); plSDfile.println(0);
-        plSDindex.write((uint8_t *) &pos, 4);
-        Serial.print(".");
-        if(display.mode()==SDCHANGE) display.putRequest(SDFILEINDEX, _sdFCount+1);
-        _sdFCount++;
-        if(_sdFCount%64==0) Serial.println();
-      }
+void SDManager::listSD(File &plSDfile, File &plSDindex, const char* dirname, uint8_t levels) {
+    File root = sdman.open(dirname);
+    if (!root) {
+        Serial.println("##[ERROR]#\tFailed to open directory");
+        return;
     }
-    if(file) file.close(); file = root.openNextFile();
-  }
-  if(root) root.close();
+    if (!root.isDirectory()) {
+        Serial.println("##[ERROR]#\tNot a directory");
+        return;
+    }
+
+    uint32_t pos = 0;
+    char* filePath;
+    while (true) {
+        vTaskDelay(2);
+        bool isDir;
+        String fileName = root.getNextFileName(&isDir);
+        if (fileName.isEmpty()) break;
+        filePath = (char*)malloc(fileName.length() + 1);
+        if (filePath == NULL) {
+            Serial.println("Memory allocation failed");
+            break;
+        }
+        strcpy(filePath, fileName.c_str());
+        const char* fn = strrchr(filePath, '/') + 1;
+        if (isDir) {
+            if (levels && !_checkNoMedia(filePath)) {
+                listSD(plSDfile, plSDindex, filePath, levels - 1);
+            }
+        } else {
+            if (_endsWith(strlwr((char*)fn), ".mp3") || _endsWith(fn, ".m4a") || _endsWith(fn, ".aac") ||
+                _endsWith(fn, ".wav") || _endsWith(fn, ".flac")) {
+                pos = plSDfile.position();
+                plSDfile.printf("%s\t%s\t0\n", fn, filePath);
+                plSDindex.write((uint8_t*)&pos, 4);
+                Serial.print(".");
+                if(display.mode()==SDCHANGE) display.putRequest(SDFILEINDEX, _sdFCount+1);
+                _sdFCount++;
+                if (_sdFCount % 64 == 0) Serial.println();
+            }
+        }
+        free(filePath);
+    }
+    root.close();
 }
 
 void SDManager::indexSDPlaylist() {
diff --git a/yoRadio/src/displays/displayLC1602.cpp b/yoRadio/src/displays/displayLC1602.cpp
index ca3bd9e..7078505 100644
--- a/yoRadio/src/displays/displayLC1602.cpp
+++ b/yoRadio/src/displays/displayLC1602.cpp
@@ -65,7 +65,7 @@ void DspCore::drawPlaylist(uint16_t currentItem) {
 	clear();
   config.fillPlMenu(currentItem - plCurrentPos, plTtemsCount);
   setCursor(0,1);
-  write(byte(126));
+  write(uint8_t(126));
 }
 
 void DspCore::clearDsp(bool black) {
diff --git a/yoRadio/src/displays/displaySH1106.h b/yoRadio/src/displays/displaySH1106.h
index aab5baf..9f3e06c 100644
--- a/yoRadio/src/displays/displaySH1106.h
+++ b/yoRadio/src/displays/displaySH1106.h
@@ -11,6 +11,7 @@
 #define CHARHEIGHT  8
 
 #define DSP_OLED
+#define GXCLOCKFONT
 
 typedef GFXcanvas1 Canvas;
 #include "widgets/widgets.h"
diff --git a/yoRadio/src/displays/displaySSD1305.h b/yoRadio/src/displays/displaySSD1305.h
index 14b5118..3809309 100644
--- a/yoRadio/src/displays/displaySSD1305.h
+++ b/yoRadio/src/displays/displaySSD1305.h
@@ -11,6 +11,7 @@
 #define CHARHEIGHT  8
 
 #define DSP_OLED
+#define GXCLOCKFONT
 
 typedef GFXcanvas1 Canvas;
 #include "widgets/widgets.h"
diff --git a/yoRadio/src/displays/displaySSD1306.h b/yoRadio/src/displays/displaySSD1306.h
index 9b4dcb1..f979a9b 100644
--- a/yoRadio/src/displays/displaySSD1306.h
+++ b/yoRadio/src/displays/displaySSD1306.h
@@ -11,6 +11,7 @@
 #define CHARHEIGHT  8
 
 #define DSP_OLED
+#define GXCLOCKFONT
 
 typedef GFXcanvas1 Canvas;
 #include "widgets/widgets.h"
diff --git a/yoRadio/src/displays/displayST7920.h b/yoRadio/src/displays/displayST7920.h
index 6f0f305..2aa4163 100644
--- a/yoRadio/src/displays/displayST7920.h
+++ b/yoRadio/src/displays/displayST7920.h
@@ -11,6 +11,7 @@
 #define CHARHEIGHT  8
 
 #define DSP_OLED
+#define GXCLOCKFONT
 
 typedef GFXcanvas1 Canvas;
 #include "widgets/widgets.h"