diff --git a/001.simple_image/bin/image.adf b/001.simple_image/bin/image.adf
index d001a6e..0667a08 100644
Binary files a/001.simple_image/bin/image.adf and b/001.simple_image/bin/image.adf differ
diff --git a/003.music/bin/music.adf b/003.music/bin/music.adf
index de629ab..8334983 100644
Binary files a/003.music/bin/music.adf and b/003.music/bin/music.adf differ
diff --git a/006.simple_blit/bin/blit.adf b/006.simple_blit/bin/blit.adf
index af3b8dc..e166b7d 100644
Binary files a/006.simple_blit/bin/blit.adf and b/006.simple_blit/bin/blit.adf differ
diff --git a/007.masked_blit/bin/mask_blit.adf b/007.masked_blit/bin/mask_blit.adf
index 2359ac6..9b01244 100644
Binary files a/007.masked_blit/bin/mask_blit.adf and b/007.masked_blit/bin/mask_blit.adf differ
diff --git a/008.shift_blit/bin/shift_blit.adf b/008.shift_blit/bin/shift_blit.adf
index cacf0a7..52beb2e 100644
Binary files a/008.shift_blit/bin/shift_blit.adf and b/008.shift_blit/bin/shift_blit.adf differ
diff --git a/009.anim_blit/bin/anim_blit.adf b/009.anim_blit/bin/anim_blit.adf
index 84cc6cd..2fb72b1 100644
Binary files a/009.anim_blit/bin/anim_blit.adf and b/009.anim_blit/bin/anim_blit.adf differ
diff --git a/011.ehb_mode/bin/ehb_mode.adf b/011.ehb_mode/bin/ehb_mode.adf
index ab9c5bc..ca065ba 100644
Binary files a/011.ehb_mode/bin/ehb_mode.adf and b/011.ehb_mode/bin/ehb_mode.adf differ
diff --git a/015.sliced_ham/bin/sliced_ham.adf b/015.sliced_ham/bin/sliced_ham.adf
index dcf576b..75e1c67 100644
Binary files a/015.sliced_ham/bin/sliced_ham.adf and b/015.sliced_ham/bin/sliced_ham.adf differ
diff --git a/Makefile b/Makefile
index adbc768..e9e3889 100644
--- a/Makefile
+++ b/Makefile
@@ -17,7 +17,8 @@ SUBDIRS=tools/makeadf \
 	013.dithered_ham\
 	014.lace_mode\
 	015.sliced_ham\
-	016.copper_fun
+	016.copper_fun\
+	017.dual_playfield
 
 .PHONY: subdirs $(SUBDIRS)
 
diff --git a/shared/bootblock.s b/shared/bootblock.s
index ba69966..c35de5e 100644
--- a/shared/bootblock.s
+++ b/shared/bootblock.s
@@ -11,7 +11,8 @@ bootEntry:
 	;;  a1 = trackdisk.device I/O request pointer
 
 	lea     BASE_ADDRESS,a5 ; main.s entry point 
-
+	;; move.l #$ff000,a7
+	
 	;; Load the progam from the floppy using trackdisk.device
 
 	move.l  #mainEnd-mainStart,IO_LENGTH(a1)