diff --git a/intro/tech_diff.asm b/intro/tech_diff.asm
index 8b467d0..87819fe 100644
--- a/intro/tech_diff.asm
+++ b/intro/tech_diff.asm
@@ -40,9 +40,7 @@ start
     sta COLBAK
     mva #15 COLOR1
     POKEY_INIT
-    lda #0
-    ;sta dmactls
-    ;sta dmactl
+    pause 3
     lda #0
     sta $d40e   ; wylaczamy NMI 
     sei         ; oraz IRQ
diff --git a/intro/tech_diff.xex b/intro/tech_diff.xex
index f2aed4c..b8915be 100644
Binary files a/intro/tech_diff.xex and b/intro/tech_diff.xex differ