diff --git a/mist/common_routines.inc b/mist/common_routines.inc
index d7cc67af..6574d09a 100644
--- a/mist/common_routines.inc
+++ b/mist/common_routines.inc
@@ -2,54 +2,54 @@
 ; external routines
 
 ; loader.s
-opendir_filename	=$1039
+opendir_filename	=$1042
 
 ; audio.c
-play_audio	=$134e
+play_audio	=$1369
 
 ; decompress_fast_v2.s
-decompress_lzsa2_fast	=$145f
-getsrc_smc	=$1555
+decompress_lzsa2_fast	=$147a
+getsrc_smc	=$1570
 
 ; draw_pointer.s
-draw_pointer	=$1562
+draw_pointer	=$157d
 
 ; end_level.s
-end_level	=$16ca
+end_level	=$16e9
 
 ; gr_copy.s
-gr_copy_to_current	=$16ec
+gr_copy_to_current	=$170b
 
 ; gr_fast_clear.s
-clear_bottom	=$1812
-clear_all	=$1850
-clear_all_color	=$1875
+clear_bottom	=$1831
+clear_all	=$186f
+clear_all_color	=$1894
 
 ; gr_offsets.s
-gr_offsets	=$1893
+gr_offsets	=$18b2
 
 ; gr_page_flip.s
-page_flip	=$18c3
+page_flip	=$18e2
 
 ; gr_putsprite_crop.s
-put_sprite_crop	=$18dd
-psc_smc1	=$1900
-psc_smc2	=$1998
+put_sprite_crop	=$18fc
+psc_smc1	=$191f
+psc_smc2	=$19b7
 
 ; keyboard.s
-handle_keypress	=$1a19
-change_location	=$1afa
+handle_keypress	=$1a38
+change_location	=$1b19
 
 ; text_print.s
-move_and_print	=$1b92
-ps_smc1	=$1bbf
+move_and_print	=$1bb1
+ps_smc1	=$1bde
 
 ; page_sprites.inc
-blue_page_sprite	=$1ca7
-red_page_sprite	=$1cbd
-white_page_sprite	=$1cd3
-blue_page_small_sprite	=$1ce9
-red_page_small_sprite	=$1cf1
+blue_page_sprite	=$1cc6
+red_page_sprite	=$1cdc
+white_page_sprite	=$1cf2
+blue_page_small_sprite	=$1d08
+red_page_small_sprite	=$1d10
 
 ; audio files
 linking_noise	= $9000
diff --git a/mist/loader.s b/mist/loader.s
index e0dd8f01..c6d74688 100644
--- a/mist/loader.s
+++ b/mist/loader.s
@@ -62,6 +62,13 @@ loader_start:
 	;===================================================
 
 which_load_loop:
+	lda	WHICH_LOAD
+
+	; update the which-file error message
+	tay
+	lda	which_disk,Y
+	sta	error_string+19
+
 	lda	WHICH_LOAD
 	asl
 
@@ -147,6 +154,23 @@ filenames:
 	.word dentist_filename,arbor_filename,nibel_filename,ship_filename
 	.word generator_filename,dni_filename
 
+which_disk:
+	.byte '1'		; MIST_TITLE
+	.byte '1'		; MIST
+	.byte '3'		; MECHE
+	.byte '3'		; SELENA
+	.byte '1'		; OCTAGON
+	.byte '2'		; VIEWER
+	.byte '3'		; STONEY
+	.byte '2'		; CHANNEL
+	.byte '1'		; CABIN
+	.byte '1'		; DENTIST
+	.byte '2'		; ARBOR
+	.byte '2'		; NIBEL
+	.byte '3'		; SHIP
+	.byte '1'		; GENERATOR
+	.byte '1'		; D'NI
+
 intro_filename:
 	.byte "MIST_TITLE",0
 mist_filename:
@@ -272,9 +296,9 @@ mlsmc07:lda	$c0e8		; turn off drive motor?
 
 	ldy	#0
 
-	lda	#<disk_string
+	lda	#<error_string
 	sta	OUTL
-	lda	#>disk_string
+	lda	#>error_string
 	sta	OUTH
 
 quick_print:
@@ -296,8 +320,9 @@ fnf_keypress:
 
 	jmp	which_load_loop
 
-disk_string:
-.byte "INSERT OTHER DISK, PRESS RETURN",0
+; offset for disk number is 19
+error_string:
+.byte "PLEASE INSERT DISK 1, PRESS RETURN",0