diff --git a/Source/HBIOS/cfg_master.asm b/Source/HBIOS/cfg_master.asm
index 1a2bffd3..6db57035 100644
--- a/Source/HBIOS/cfg_master.asm
+++ b/Source/HBIOS/cfg_master.asm
@@ -142,7 +142,7 @@ NECENABLE	.EQU	FALSE		; NEC: ENABLE NEC UPD7220 VIDEO/KBD DRIVER (NEC.ASM)
 TMSENABLE	.EQU	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 TMSMODE		.EQU	TMSMODE_NONE	; TMS: DRIVER MODE: TMSMODE_[SCG/N8]
 VGAENABLE	.EQU	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
-VGASIZ		.EQU	V80X30		; VGA: DISPLAY FORMAT [V80X24|V80X30]
+VGASIZ		.EQU	V80X25		; VGA: DISPLAY FORMAT [V80X25|V80X30]
 ;
 SPKENABLE	.EQU	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
 ;
diff --git a/Source/HBIOS/ctc.asm b/Source/HBIOS/ctc.asm
index 7551bed9..814fd110 100644
--- a/Source/HBIOS/ctc.asm
+++ b/Source/HBIOS/ctc.asm
@@ -74,7 +74,7 @@ CTC_PREINIT:
 		;  |||||+---- 1=TIME CONSTANT FOLLOWS
 		;  ||||+----- 0=AUTO TRIGGER WHEN TIME CONST LOADED
 		;  |||+------ 1=RISING EDGE TRIGGER
-		;  ||+------- 1=PRESCALER OF 16 (NOT USED)
+		;  ||+------- 0=PRESCALER OF 16 (NOT USED)
 		;  |+-------- 1=COUNTER MODE
 		;  +--------- 0=NO INTERRUPTS
 	OUT	(CTCPC),A		; SETUP PRESCALE CHANNEL
@@ -87,7 +87,7 @@ CTC_PREINIT:
 		;  |||||+---- 1=TIME CONSTANT FOLLOWS
 		;  ||||+----- 0=AUTO TRIGGER WHEN TIME CONST LOADED
 		;  |||+------ 1=RISING EDGE TRIGGER
-		;  ||+------- 1=PRESCALER OF 16 (NOT USED)
+		;  ||+------- 0=PRESCALER OF 16 (NOT USED)
 		;  |+-------- 1=COUNTER MODE
 		;  +--------- 1=ENABLE INTERRUPTS
 	OUT	(CTCTC),A		; SETUP TIMER CHANNEL
@@ -116,8 +116,6 @@ CTC_PRTCFG:
 #IF (CTCMODE == CTCMODE_RC)
 	PRTS("RC$")
 #ENDIF
-;	LD	A,(IY)			; DEVICE NUM
-;	CALL	PRTDECB			; PRINT DEVICE NUM
 	PRTS(" IO=0x$")			; FORMATTING
 	LD	A,CTCBASE		; GET BASE PORT
 	CALL	PRTHEXBYTE		; PRINT BASE PORT