diff --git a/src/main.c b/src/main.c
index 8e5916b..7168f30 100644
--- a/src/main.c
+++ b/src/main.c
@@ -91,14 +91,16 @@ int main()
 	stdio_init_all();
 
 	// "draw" an horizontal dotted line (?)
-	for (unsigned int c = 0; c < 20; c += 3)
+	for (unsigned int c = 0; c < 5; c++)
 	{
-		frames[0].data[80 * 64 + 50 + c] = 0x55;
+		frames[0].data[80 * 64 + 30 + c] = 0x55;
 	}
-	for (unsigned int c = 0; c < 20; c += 3)
+	/*
+	for (unsigned int c = 0; c < 20; c++)
 	{
-		frames[0].data[80 * 128 + 50 + c] = 0x99;
+	    frames[0].data[80 * 128 + 30 + c] = 0x99;
 	}
+	*/
 
 	// PIO and state machines
 	PIO pio = pio0;