diff --git a/dither4.s b/dither4.s
index 0a2fcb7..c9f886c 100644
--- a/dither4.s
+++ b/dither4.s
@@ -34,7 +34,7 @@ bytes_per_line = 40
 pages_per_frame = 32
 lines_per_frame = 262
 ;scanline_offset = 31 + (40 - 24) / 2
-scanline_offset = 47
+scanline_offset = 48
 scanline_max = (lines_per_frame - scanline_offset) / 2
 
 .data
@@ -214,7 +214,7 @@ wait_loop:
         ;audio_play_hi ; too slow
 
         ldy VCOUNT ; save for audio lookup
-        cpy #130
+        cpy #0
         bne each_scanline_pair
 
         audio_inc