diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
index 6fbf923e..3670d886 100644
--- a/.github/pull_request_template.md
+++ b/.github/pull_request_template.md
@@ -1,7 +1,7 @@
 <!--
 BEFORE YOU CREATE A PULL REQUEST:
 
-- Please base all pull requests against the dev branch
+- Please base all pull requests against the master branch
 - Include a clear description of your change
 - Reference related Issue(s) (e.g., "Resolves Issue #123")
 
diff --git a/Source/HBIOS/Makefile.new b/Source/HBIOS/Makefile.new
index f5e51005..5a6d0f42 100644
--- a/Source/HBIOS/Makefile.new
+++ b/Source/HBIOS/Makefile.new
@@ -1,28 +1,36 @@
-DIST_OBJECTS := DYNO_std MK4_std N8_std RCZ180_ext RCZ180_nat RCZ180_z1rcc \
-		RCZ280_ext RCZ280_nat RCZ280_zz80mb RCZ280_zzrcc RCZ280_zzrcc_ram \
-		RCZ80_std RCZ80_kio RCZ80_easy RCZ80_tiny RCZ80_skz RCZ80_zrc \
-		RCZ80_zrc_ram RCZ80_zrc512 RPH_std SBC_std SBC_simh MBC_std \
-		DUO_std SCZ180_sc126 SCZ180_sc130 SCZ180_sc131 SCZ180_sc140 \
-		SCZ180_sc503 SCZ180_sc700 S100_std UNA_std Z80RETRO_std \
-		ZETA_std ZETA2_std HEATH_std EPITX_std
-#		RCZ80_mt RCZ80_duart MON_std 
+DIST_OBJECTS := \
+	DYNO_std MK4_std N8_std RCZ180_ext RCZ180_nat RCZ180_z1rcc \
+	RCZ280_ext RCZ280_nat RCZ280_zz80mb RCZ280_zzrcc RCZ280_zzrcc_ram \
+	RCZ80_std RCZ80_kio RCZ80_easy RCZ80_tiny RCZ80_skz RCZ80_zrc \
+	RCZ80_zrc_ram RCZ80_zrc512 RPH_std SBC_std SBC_simh MBC_std \
+	DUO_std SCZ180_sc126 SCZ180_sc130 SCZ180_sc131 SCZ180_sc140 \
+	SCZ180_sc503 SCZ180_sc700 S100_std UNA_std Z80RETRO_std \
+	ZETA_std ZETA2_std HEATH_std EPITX_std
+#	RCZ80_mt RCZ80_duart MON_std 
 
 OBJECTS := $(DIST_OBJECTS)
-#OBJECTS := SBC_std S100_std
+#OBJECTS := SBC_std MK4_std UNA_std S100_std
 OBJECTS := $(OBJECTS:=.rom) $(OBJECTS:=.com) $(OBJECTS:=.upd)
 OBJECTS := $(filter-out UNA_%.com UNA_%.upd,$(OBJECTS))
 
 DEST = ../../Binary
 TOOLS = ../../Tools
-OTHERS =  *.img *.rom *.com *.upd *.bin *.hex cpm.sys zsys.sys build.inc *.build.inc font*.asm *.dat hbios_env.sh
+OTHERS := *.img *.rom *.com *.upd *.bin *.hex cpm.sys zsys.sys build.inc
+OTHERS +=  *.build.inc font*.asm *.dat hbios_env.sh
 
-FONTS := font8x11c.asm font8x11u.asm font8x16c.asm font8x16u.asm font8x8c.asm font8x8u.asm \
-	fontcgac.asm fontcgau.asm fontvgarcc.asm fontvgarcu.asm
+FONTS := font8x11c.asm font8x11u.asm font8x16c.asm font8x16u.asm
+FONTS += font8x8c.asm font8x8u.asm fontcgac.asm fontcgau.asm
+FONTS += fontvgarcc.asm fontvgarcu.asm
 
-include $(TOOLS)/Makefile.inc
+BUILD_COMPONENT = \
+	cp $(*F).build.inc build.inc ; \
+	$(TASM) $(TASMFLAGS) $< $@ $(@:.bin=.lst) ; \
+	rm build.inc
 
 SHELL=/bin/bash
 
+include $(TOOLS)/Makefile.inc
+
 font%.asm:
 	cp ../Fonts/$@ .
 
@@ -49,40 +57,13 @@ s100mon.bin:
 	EOF
 	cat $@
 
-%.usrrom.bin: usrrom.asm %.build.inc
-	cp $(*F).build.inc build.inc
-	$(TASM) $(TASMFLAGS) $< $@ $(@:.bin=.lst)
-	rm build.inc
-
-%.updater.bin: updater.asm %.build.inc
-	cp $(*F).build.inc build.inc
-	$(TASM) $(TASMFLAGS) $< $@ $(@:.bin=.lst)
-	rm build.inc
-
-%.eastaegg.bin: eastaegg.asm %.build.inc
-	cp $(*F).build.inc build.inc
-	$(TASM) $(TASMFLAGS) $< $@ $(@:.bin=.lst)
-	rm build.inc
-
-%.game.bin: game.asm %.build.inc
-	cp $(*F).build.inc build.inc
-	$(TASM) $(TASMFLAGS) $< $@ $(@:.bin=.lst)
-	rm build.inc
-
-%.nascom.bin: nascom.asm %.build.inc
-	cp $(*F).build.inc build.inc
-	$(TASM) $(TASMFLAGS) $< $@ $(@:.bin=.lst)
-	rm build.inc
-
-%.romldr.bin: romldr.asm %.build.inc
-	cp $(*F).build.inc build.inc
-	$(TASM) $(TASMFLAGS) $< $@ $(@:.bin=.lst)
-	rm build.inc
-
-%.dbgmon.bin: dbgmon.asm %.build.inc
-	cp $(*F).build.inc build.inc
-	$(TASM) $(TASMFLAGS) $< $@ $(@:.bin=.lst)
-	rm build.inc
+%.usrrom.bin: usrrom.asm %.build.inc ; $(BUILD_COMPONENT)
+%.updater.bin: updater.asm %.build.inc ; $(BUILD_COMPONENT)
+%.eastaegg.bin: eastaegg.asm %.build.inc ; $(BUILD_COMPONENT)
+%.game.bin: game.asm %.build.inc ; $(BUILD_COMPONENT)
+%.nascom.bin: nascom.asm %.build.inc ; $(BUILD_COMPONENT)
+%.romldr.bin: romldr.asm %.build.inc ; $(BUILD_COMPONENT)
+%.dbgmon.bin: dbgmon.asm %.build.inc ; $(BUILD_COMPONENT)
 
 %.hbios_env.com: hbios_env.asm %.build.inc
 	cp $(*F).build.inc build.inc
diff --git a/Source/HBIOS/uart.asm b/Source/HBIOS/uart.asm
index 4b5404c9..eef0d133 100644
--- a/Source/HBIOS/uart.asm
+++ b/Source/HBIOS/uart.asm
@@ -216,19 +216,8 @@ UART_INIT1:
 	LD	A,(IY+1)		; GET UART TYPE
 	OR	A			; SET FLAGS
 	JR	Z,UART_INIT2		; SKIP IF ZERO (NOT DETECTED)
-	PUSH	AF			; SAVE TYPE VALUE
 	CALL	UART_PRTCFG		; PRINT IF NOT ZERO
-	POP	AF			; RESTORE TYPE VALUE
-	BIT	UART_CTSBAD,A		; CTS STALL?
-	JR	Z,UART_INIT2		; IF NOT, SKIP AHEAD
-	CALL	NEWLINE			; FORMATTING
-	PRTS("UART$")			; FORMATTING
-	LD	A,(IY)			; DEVICE NUM
-	CALL	PRTDECB			; PRINT DEVICE NUM
-	PRTS(": $")			; FORMATTING
-	LD	DE,UART_STR_BADCTS	; LOAD WARNING MESSAGE
-	CALL	WRITESTR		; ... AND PRINT IT
-;	
+;
 UART_INIT2:
 	POP	BC			; RESTORE LOOP CONTROL
 	INC	C			; NEXT UNIT
@@ -963,6 +952,11 @@ UART_PRTCFG2:
 	PRTS(" AFC$")
 ;
 UART_PRTCFG3:
+	BIT	UART_CTSBAD,(IY+1)	; GET BADCTS BIT
+	JR	Z,UART_PRTCFG4
+	PRTS(" NO_CTS!$")
+;
+UART_PRTCFG4:
 ;
 	XOR	A
 	RET
@@ -1023,8 +1017,6 @@ UART_STR_16850		.DB	"16850$"
 ;
 UART_PAR_MAP		.DB	"NONENMNS"
 ;
-UART_STR_BADCTS		.DB	"CTS STALL, HARDWARE FLOW CONTROL SUSPENDED$"
-;
 ; WORKING VARIABLES
 ;
 UART_DEV		.DB	0		; DEVICE NUM USED DURING INIT
diff --git a/Source/ver.inc b/Source/ver.inc
index e9bdac40..2d1e939f 100644
--- a/Source/ver.inc
+++ b/Source/ver.inc
@@ -2,7 +2,7 @@
 #DEFINE	RMN	4
 #DEFINE	RUP	0
 #DEFINE	RTP	0
-#DEFINE BIOSVER	"3.4.0-rc.0"
+#DEFINE BIOSVER	"3.4.0-rc.1"
 #define rmj	RMJ
 #define rmn	RMN
 #define rup	RUP
diff --git a/Source/ver.lib b/Source/ver.lib
index ae7e15dc..eb1f478d 100644
--- a/Source/ver.lib
+++ b/Source/ver.lib
@@ -3,5 +3,5 @@ rmn	equ	4
 rup	equ	0
 rtp	equ	0
 biosver	macro
-	db	"3.4.0-rc.0"
+	db	"3.4.0-rc.1"
 	endm
diff --git a/Tools/Makefile.inc b/Tools/Makefile.inc
index 73e42a69..ad538a9c 100644
--- a/Tools/Makefile.inc
+++ b/Tools/Makefile.inc
@@ -124,16 +124,17 @@ all:: $(OBJECTS)
 	@for dir in $(SUBDIRS) ; do \
 		$(MAKE) --directory $$dir ; \
 	done
+	rm -f /tmp/casefn.cache
 	@if [ "$(DEST)" ] && [ "$(OBJECTS)" ] ; then for file in $(filter-out $(NOCOPY),$(OBJECTS)) ; do \
 		mkdir -p $(DEST) ; \
 		echo Copying $$file to $(DEST) ; \
-		rm -f /tmp/casefn.cache ; \
+		#rm -f /tmp/casefn.cache ; \
 		cp $$($(CASEFN) $$file) $(DEST) ; \
 	done ; fi
 	@if [ "$(DOCDEST)" ] && [ "$(DOCS)" ] ; then for file in $(DOCS) ; do \
 		mkdir -p $(DOCDEST) ; \
 		echo Copying $$file to $(DOCDEST) ; \
-		rm -f /tmp/casefn.cache ; \
+		#rm -f /tmp/casefn.cache ; \
 		cp $$($(CASEFN) $$file) $(DOCDEST) ; \
 	done ; fi