diff --git a/dither4.s b/dither4.s
index d32f2f4..010df89 100644
--- a/dither4.s
+++ b/dither4.s
@@ -197,12 +197,17 @@ wait_loop:
         cmp #.hibyte(audio_samples_end) ; 2 cyc
         bmi audio_cont                  ; 2 cyc
 
+        sta WSYNC
+
         ; 10 cycles, optional
         lda #.lobyte(audio_samples)     ; 2
         sta sample_ptrl                 ; 3
         lda #.hibyte(audio_samples)     ; 2
         sta sample_ptrh                 ; 3
 
+        sta WSYNC
+        ldy VCOUNT             ; 4 cycles
+
         audio_cont:
     .endmacro
 
@@ -231,10 +236,12 @@ wait_loop:
         lda frame_counter ; 3 cycles
         eor #1            ; 2 cycles
         sta frame_counter ; 3 cycles
-        jmp wait_start    ; 3 cycles
+        ;jmp wait_start    ; 3 cycles
+        jmp each_frame    ; 3 cycles
     .endscope
     .endmacro
 
+each_frame:
     lda frame_counter ; 3 cycles
     beq run_frame1 ; 2 cycles
     jmp run_frame2 ; 3 cycles