diff --git a/audit/audit.dsk b/audit/audit.dsk
index 8cc44b5..70ce92a 100644
Binary files a/audit/audit.dsk and b/audit/audit.dsk differ
diff --git a/audit/build b/audit/build
index 1f75ff2..01653c1 100755
--- a/audit/build
+++ b/audit/build
@@ -7,10 +7,12 @@ acme audit.asm
 # Build audit.dsk with diskii (bit.ly/a2diskii), on a Super-Mon disk
 # =====================================================================
 
-cp ../dsk/supermon20.dsk audit.dsk
-# FHELLO: load file DF02 at 0x6000.
-diskii nakedos mkhello audit.dsk DF02
-diskii put -f audit.dsk DF02:FWORLD audit.o
+# cp ../dsk/supermon20.dsk audit.dsk
+# # FHELLO: load file DF02 at 0x6000.
+# diskii nakedos mkhello audit.dsk DF02
+# diskii put -f audit.dsk DF02:FWORLD audit.o
+
+diskii mksd audit.dsk audit.o
 
 # Extract extended error strings and rebuild ../v0/index.md
 echo -e '# V0 Errors' > ../v0/index.md
diff --git a/audit/langcard.asm b/audit/langcard.asm
index 4a6af50..10bd701 100644
--- a/audit/langcard.asm
+++ b/audit/langcard.asm
@@ -238,9 +238,12 @@
 	beq .test
 	tax
 	bmi +
-	lda $C080,x
+	ora #$80
+	sta .lda+1
+.lda	lda $C000
 	jmp ++
-+	sta $C000,x
++	sta .sta+1
+.sta	sta $C000
 ++	iny
 	bne .inner
 
@@ -380,7 +383,7 @@
 +	jmp .outer
 
 .datatesturl
-	+prerr $001E ;; E001E: We initialized $D17B in RAM bank 1 to $55, $D17B in RAM bank 2 to $AA, and $FE1F in RAM to $55. Then, we perform a testdata-driven sequence of LDA and STA to the $C08X range. Finally we (try to) increment $D17B and $FE1F. Then we test (a) the current live value in $D17B, (b) the current live value in $FE1F, (c) the RAM bank 1 value of $D17B, (d) the RAM bank 2 value of $D17B, and (e) the RAM value of $FE1F, to see whether they match expected values. $D17B is usually $53 in ROM, and $FE1F is usally $60.
+	+prerr $001E ;; E001E: We initialized $D17B in RAM bank 1 to $55, $D17B in RAM bank 2 to $AA, and $FE1F in RAM to $55. Then, we perform a testdata-driven sequence of LDA and STA to the $C08X range. Finally we (try to) increment $D17B and $FE1F. Then we test (a) the current live value in $D17B, (b) the current live value in $FE1F, (c) the RAM bank 1 value of $D17B, (d) the RAM bank 2 value of $D17B, and (e) the RAM value of $FE1F, to see whether they match expected values. $D17B is usually $53 in ROM, and $FE1F is usally $60. For more information on the operation of the language card soft-switches, see Understanding the Apple IIe, by James Fielding Sather, Pg 5-24.
 	!text "DATA-DRIVEN TEST FAILED"
 	+prerred
 	beq .done
@@ -427,8 +430,15 @@
 	;; Format:
 	;; - $ff-terminated list of C0XX addresses (0-F to read C08X, 80-8F to write C0XX).
 	;; - quint: expected current $d17b and fe1f, then d17b in bank1, d17b in bank 2, and fe1f
-	!byte $8, $ff		; Read $C088 (RAM read, write protected)
-	!byte $55, $55, $55, $AA, $55
+	;; (All sequences start with lda $C080, just to reset things to a known state.)
+	!byte $8, $ff				; Read $C088 (RAM read, write protected)
+	!byte $55, $55, $55, $AA, $55		;
+	!byte $1, $1, $ff			; Read $C081, $C081 (read ROM, write RAM bank 2)
+	!byte $53, $60, $55, $54, $61		;
+	!byte $b, $b, $ff			; Read $C08B, $C08B (read/write RAM bank 1)
+	!byte $56, $56, $56, $AA, $56		;
+	!byte $b, $8b, $b, $ff			; Read $C08B, write $C08B, read $C08B (read RAM bank 1, no write)
+	!byte $55, $55, $55, $AA, $55		;
 	!byte $ff
 
 	nop			; Provide clean break after data when viewing disassembly
diff --git a/v0/index.md b/v0/index.md
index 6ec0657..c4a13eb 100644
--- a/v0/index.md
+++ b/v0/index.md
@@ -118,4 +118,4 @@ Read $C083 (read bank 2), but the check byte ($D17B) is an unknown value.
 
 ## E001E
 
-We initialized $D17B in RAM bank 1 to $55, $D17B in RAM bank 2 to $AA, and $FE1F in RAM to $55. Then, we perform a testdata-driven sequence of LDA and STA to the $C08X range. Finally we (try to) increment $D17B and $FE1F. Then we test (a) the current live value in $D17B, (b) the current live value in $FE1F, (c) the RAM bank 1 value of $D17B, (d) the RAM bank 2 value of $D17B, and (e) the RAM value of $FE1F, to see whether they match expected values. $D17B is usually $53 in ROM, and $FE1F is usally $60.
+We initialized $D17B in RAM bank 1 to $55, $D17B in RAM bank 2 to $AA, and $FE1F in RAM to $55. Then, we perform a testdata-driven sequence of LDA and STA to the $C08X range. Finally we (try to) increment $D17B and $FE1F. Then we test (a) the current live value in $D17B, (b) the current live value in $FE1F, (c) the RAM bank 1 value of $D17B, (d) the RAM bank 2 value of $D17B, and (e) the RAM value of $FE1F, to see whether they match expected values. $D17B is usually $53 in ROM, and $FE1F is usally $60. For more information on the operation of the language card soft-switches, see Understanding the Apple IIe, by James Fielding Sather, Pg 5-24.