diff --git a/src/global.h b/src/global.h
index cfa8187d..a889b1b0 100755
--- a/src/global.h
+++ b/src/global.h
@@ -43,7 +43,7 @@
 
 // version and application name (always use this version)
 #undef VERSION
-#define VERSION                         "2.0.1cvs"
+#define VERSION                         "2.1.0cvs"
 #define APP_NAME                        "llcon"
 
 // file name for logging file
@@ -79,11 +79,7 @@
 #define DEF_NET_BUF_SIZE_NUM_BL         5 // number of blocks
 
 // number of ticks of audio in/out buffer sliders
-#ifdef _WIN32
-# define AUD_SLIDER_LENGTH              30
-#else
 # define AUD_SLIDER_LENGTH              6
-#endif
 
 // maximum number of internet connections (channels)
 // if you want to change this paramter, there has to be done code modifications
diff --git a/windows/sound.h b/windows/sound.h
index 9a6b453e..bf312559 100755
--- a/windows/sound.h
+++ b/windows/sound.h
@@ -44,11 +44,11 @@
 #define BITS_PER_SAMPLE         16      // use all bits of the D/A-converter
 #define BYTES_PER_SAMPLE        2       // number of bytes per sample
 
-#define MAX_SND_BUF_IN          200
-#define MAX_SND_BUF_OUT         200
+#define MAX_SND_BUF_IN          100
+#define MAX_SND_BUF_OUT         100
 
-#define NUM_SOUND_BUFFERS_IN    ( 70 / MIN_BLOCK_DURATION_MS )
-#define NUM_SOUND_BUFFERS_OUT   ( 80 / MIN_BLOCK_DURATION_MS )
+#define NUM_SOUND_BUFFERS_IN    2
+#define NUM_SOUND_BUFFERS_OUT   2
 
 // maximum number of recognized sound cards installed in the system
 #define MAX_NUMBER_SOUND_CARDS  10