diff --git a/dither-image.js b/dither-image.js
index f7be3d4..07a66da 100644
--- a/dither-image.js
+++ b/dither-image.js
@@ -1016,7 +1016,7 @@ ${byte2byte(odd(frame.palette3))}
 .align 1024
 displaylist:
     ; 24 lines overscan
-    .repeat 3
+    .repeat 2
         .byte $70 ; 8 blank lines
     .endrep
     ; include a DLI to mark us as frame 0
diff --git a/dither4.s b/dither4.s
index b985633..fd4c0ec 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 = 38
+scanline_offset = 30
 scanline_max = (lines_per_frame - scanline_offset) / 2
 
 .data