diff --git a/Source/HBIOS/cfg_duo.asm b/Source/HBIOS/cfg_duo.asm
index 861e42bd..cdfc34a1 100644
--- a/Source/HBIOS/cfg_duo.asm
+++ b/Source/HBIOS/cfg_duo.asm
@@ -211,10 +211,10 @@ IDE2DATHI	.EQU	$00		; IDE 2: DATA HI PORT FOR 16-BIT I/O
 IDE2A8BIT	.EQU	TRUE		; IDE 2A (MASTER): 8 BIT XFER
 IDE2B8BIT	.EQU	TRUE		; IDE 2B (MASTER): 8 BIT XFER
 ;
-PPIDEENABLE	.EQU	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
+PPIDEENABLE	.EQU	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
 PPIDETRACE	.EQU	1		; PPIDE: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
 PPIDECNT	.EQU	1		; PPIDE: NUMBER OF PPI CHIPS TO DETECT (1-3), 2 DRIVES PER CHIP
-PPIDE0BASE	.EQU	$60		; PPIDE 0: PPI REGISTERS BASE ADR
+PPIDE0BASE	.EQU	$88		; PPIDE 0: PPI REGISTERS BASE ADR
 PPIDE0A8BIT	.EQU	FALSE		; PPIDE 0A (MASTER): 8 BIT XFER
 PPIDE0B8BIT	.EQU	FALSE		; PPIDE 0B (SLAVE): 8 BIT XFER
 PPIDE1BASE	.EQU	$20		; PPIDE 1: PPI REGISTERS BASE ADR