diff --git a/Source/bootrom.asm b/Source/bootrom.asm
index 6b852cd9..2c9a980b 100644
--- a/Source/bootrom.asm
+++ b/Source/bootrom.asm
@@ -155,10 +155,6 @@ LOOP:
 	LD	A,BID_HB	; HBIOS RAM PAGE
 	CALL	PGSEL		; SELECT IT
 	CALL	$1000		; CALL HBIOS INITIALIZATION
-;
-	LD	A,BID_BOOT	; ROM PAGE WITH HBIOS IMAGE
-	CALL	PGSEL		; SELECT IT
-	CALL	XIO_DOT		; MARK PROGRESS
 ;
 	; CALL HBIOS PROXY INITIALIZATION
 	LD	A,BID_USR	; USER RAM PAGE
diff --git a/Source/config_mk4_std.asm b/Source/config_mk4_std.asm
index 86ff8350..17495dff 100644
--- a/Source/config_mk4_std.asm
+++ b/Source/config_mk4_std.asm
@@ -125,7 +125,7 @@ Z180_CNTLB1	.EQU	21H		; SERIAL PORT 1 DIV, SEE Z180 CLOCKING DOCUMENT
 #DEFINE		DRVLST \
 #DEFCONT	DRVENT(DIODEV_MD,1,0,0)		; A: = MD1 = RAM DISK
 #DEFCONT	DRVENT(DIODEV_MD,0,0,0)		; B: = MD0 = ROM DISK
-#DEFCONT	DRVENT(DIODEV_SD,0,0,0)		; C: = SD0:0 = SD UNIT 0, SLICE 0
-#DEFCONT	DRVENT(DIODEV_SD,0,1,0)		; D: = SD0:1 = SD UNIT 0, SLICE 0
-#DEFCONT	DRVENT(DIODEV_IDE,0,0,0)		; E: = IDE0:0 = SD UNIT 0, SLICE 0
-#DEFCONT	DRVENT(DIODEV_IDE,0,1,0)		; F: = IDE0:0 = SD UNIT 0, SLICE 0
+#DEFCONT	DRVENT(DIODEV_IDE,0,0,0)	; C: = IDE0:0 = IDE UNIT 0, SLICE 0
+#DEFCONT	DRVENT(DIODEV_IDE,0,1,0)	; D: = IDE0:0 = IDE UNIT 0, SLICE 0
+#DEFCONT	DRVENT(DIODEV_SD,0,0,0)		; E: = SD0:0 = SD UNIT 0, SLICE 0
+#DEFCONT	DRVENT(DIODEV_SD,0,1,0)		; F: = SD0:1 = SD UNIT 0, SLICE 0