diff --git a/Source/HBIOS/Config/SCZ180_126.asm b/Source/HBIOS/Config/SCZ180_126.asm
index d9f61484..9bb78400 100644
--- a/Source/HBIOS/Config/SCZ180_126.asm
+++ b/Source/HBIOS/Config/SCZ180_126.asm
@@ -32,7 +32,7 @@ Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
 Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
 Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
 ;
-HBIOS_MUTEX	.SET	FALSE		; PREVENT REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
 ;
 ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
 ;
diff --git a/Source/HBIOS/Config/SCZ180_130.asm b/Source/HBIOS/Config/SCZ180_130.asm
index f5e5e58b..7ee6370d 100644
--- a/Source/HBIOS/Config/SCZ180_130.asm
+++ b/Source/HBIOS/Config/SCZ180_130.asm
@@ -32,9 +32,9 @@ Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
 Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
 Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
 ;
-HBIOS_MUTEX	.SET	FALSE		; PREVENT REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
 ;
-LEDENABLE	.SET	TRUE		; ENABLES STATUS LED (SINGLE LED)
+LEDENABLE	.SET	TRUE		; ENABLE STATUS LED (SINGLE LED)
 ;
 ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
 ;
diff --git a/Source/HBIOS/Config/SCZ180_131.asm b/Source/HBIOS/Config/SCZ180_131.asm
index eeb28239..9bdcbb99 100644
--- a/Source/HBIOS/Config/SCZ180_131.asm
+++ b/Source/HBIOS/Config/SCZ180_131.asm
@@ -32,9 +32,9 @@ Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
 Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
 Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
 ;
-HBIOS_MUTEX	.SET	FALSE		; PREVENT REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
+HBIOS_MUTEX	.SET	FALSE		; ENABLE REENTRANT CALLS TO HBIOS (ADDS OVERHEAD)
 ;
-LEDENABLE	.SET	TRUE		; ENABLES STATUS LED (SINGLE LED)
+LEDENABLE	.SET	TRUE		; ENABLE STATUS LED (SINGLE LED)
 ;
 DIAGENABLE	.SET	FALSE		; ENABLES OUTPUT TO 8 BIT LED DIAGNOSTIC PORT
 ;