diff --git a/client/clients/Makefile b/client/clients/Makefile
index 808ba9e..c267a8f 100644
--- a/client/clients/Makefile
+++ b/client/clients/Makefile
@@ -13,8 +13,9 @@ INCFILES=\
 
 IP65LIB=../ip65/ip65.lib
 
-C64NETLIB=../drivers/c64net.lib
-APPLE2NETLIB=../drivers/apple2net.lib
+C64PROGLIB=../drivers/c64prog.lib
+C64NB65LIB=../drivers/c64nb65.lib
+APPLE2PROGLIB=../drivers/apple2prog.lib
 
 BOOTA2.PG2=../../server/boot/BOOTA2.PG2
   
@@ -33,23 +34,23 @@ rrnetboot.o: rrnetboot.s $(INCFILES)
 %.o: %.s $(INCFILES) 
 	$(AS) $(AFLAGS) $<
 
-rrnetboot.bin: rrnetboot.o $(IP65LIB) $(C64NETLIB) $(INCFILES) ../cfg/rrbin.cfg
-	$(LD) -m rrnetboot.map -vm -C ../cfg/rrbin.cfg -o rrnetboot.bin  $< $(IP65LIB) $(C64NETLIB)  
+rrnetboot.bin: rrnetboot.o $(IP65LIB) $(C64NB65LIB) $(INCFILES) ../cfg/rrbin.cfg
+	$(LD) -m rrnetboot.map -vm -C ../cfg/rrbin.cfg -o rrnetboot.bin  $< $(IP65LIB) $(C64NB65LIB)  
 	ruby fix_cart.rb rrnetboot.bin 8193
 
-64nicboot.bin: 64nicboot.o $(IP65LIB) $(C64NETLIB) $(INCFILES) ../cfg/rrbin.cfg
-	$(LD) -C ../cfg/rrbin.cfg -o 64nicboot.bin  $< $(IP65LIB) $(C64NETLIB)  
+64nicboot.bin: 64nicboot.o $(IP65LIB) $(C64NB65LIB) $(INCFILES) ../cfg/rrbin.cfg
+	$(LD) -C ../cfg/rrbin.cfg -o 64nicboot.bin  $< $(IP65LIB) $(C64NB65LIB)  
 	ruby fix_cart.rb 64nicboot.bin 8192
 
-utherboot.pg2: utherboot.o $(IP65LIB) $(APPLE2NETLIB) $(INCFILES) ../cfg/a2language_card.cfg
-	$(LD) -m utherboot.map -C ../cfg/a2language_card.cfg -o utherboot.pg2  $< $(IP65LIB) $(APPLE2NETLIB)  
+utherboot.pg2: utherboot.o $(IP65LIB) $(APPLE2PROGLIB) $(INCFILES) ../cfg/a2language_card.cfg
+	$(LD) -m utherboot.map -C ../cfg/a2language_card.cfg -o utherboot.pg2  $< $(IP65LIB) $(APPLE2PROGLIB)  
 
 utherboot.dsk: utherboot.pg2
 	ripxplore.rb --init AppleDos utherboot.dsk -a utherboot.pg2 -t AppleBinary
 	ripxplore.rb utherboot.dsk -a hello -t Applesoft
 
-$(BOOTA2.PG2): bootmenu.o $(IP65LIB) $(APPLE2NETLIB) $(INCFILES) ../cfg/a2language_card.cfg
-	$(LD) -m bootmenu.map -C ../cfg/a2language_card.cfg -o $(BOOTA2.PG2)  $< $(IP65LIB) $(APPLE2NETLIB)  
+$(BOOTA2.PG2): bootmenu.o $(IP65LIB) $(APPLE2PROGLIB) $(INCFILES) ../cfg/a2language_card.cfg
+	$(LD) -m bootmenu.map -C ../cfg/a2language_card.cfg -o $(BOOTA2.PG2)  $< $(IP65LIB) $(APPLE2PROGLIB)  
   
 clean:
 	rm -f *.o
diff --git a/client/clients/rrnetboot.s b/client/clients/rrnetboot.s
index ea907aa..5dfef02 100644
--- a/client/clients/rrnetboot.s
+++ b/client/clients/rrnetboot.s
@@ -45,7 +45,6 @@
   .include "../inc/c64keycodes.i"
   
   .import cls
-  .import get_key
   .import beep
   .import exit_to_basic
   .import timer_vbl_handler
@@ -54,7 +53,8 @@
   .import get_filtered_input
   .import filter_text
   .import filter_dns
-  
+  .import print_arp_cache
+
   .import print_dotted_quad
   .import print_hex
   .import print_ip_config
@@ -169,7 +169,7 @@ main_menu:
   jsr print
   jsr print_ip_config
   jsr print_cr
-
+  
 @get_key:
   jsr get_key
   cmp #KEYCODE_F1
@@ -178,6 +178,8 @@ main_menu:
  @not_tftp:  
   cmp #KEYCODE_F3    
   beq @exit_to_basic
+  cmp #KEYCODE_F5 
+  beq @util_menu
   cmp #KEYCODE_F7
   beq @change_config
   
@@ -188,6 +190,24 @@ main_menu:
   ldax #$fe66 ;do a wam start
   jmp exit_cart_via_ax
 
+@util_menu:
+  jsr cls  
+  ldax  #netboot65_msg
+  jsr print
+  ldax  #util_menu_msg
+  jsr print
+@get_key_util_menu:
+  jsr get_key
+  cmp #KEYCODE_F1
+  bne @not_arp_cache
+  jsr print_arp_cache
+  jmp @get_key_util_menu
+ @not_arp_cache:
+  cmp #KEYCODE_F7
+  beq main_menu
+  jmp @get_key_util_menu
+
+
 @change_config:
   jsr cls  
   ldax  #netboot65_msg
@@ -262,7 +282,10 @@ main_menu:
   ldax  #tftp_dir_buffer
   
   jsr select_option_from_menu  
-
+  bcc @tftp_filename_set
+  lda #21 ;switch back to upper case
+  sta $d018
+  jmp main_menu
 @tftp_filename_set:
   jsr download
   bcc @file_downloaded_ok
@@ -352,7 +375,8 @@ download: ;AX should point at filename to download
   
   jsr setup_param_buffer_for_tftp_call
   ldax #nb65_param_buffer
-  nb65call #NB65_TFTP_DOWNLOAD  
+  nb65call #NB65_TFTP_DOWNLOAD
+  
 	bcc :+
   
 	ldax #tftp_download_fail_msg  
@@ -370,9 +394,19 @@ download: ;AX should point at filename to download
 wait_for_keypress:
   ldax  #press_a_key_to_continue
   jsr print
-  jsr get_key
+@loop:  
+  jsr $ffe4
+  beq @loop
   rts
 
+get_key:
+@loop:  
+  jsr NB65_PERIODIC_PROCESSING_VECTOR
+  jsr $ffe4
+  beq @loop
+  rts
+
+
 cfg_get_configuration_ptr:
   ldax #nb65_param_buffer  
   nb65call #NB65_GET_IP_CONFIG
@@ -385,7 +419,12 @@ netboot65_msg:
 .byte 0
 main_menu_msg:
 .byte "F1: TFTP BOOT        F3: BASIC",13
-.byte "F7: CONFIG",13,13
+.byte "F5: UTILITIES        F7: CONFIG",13,13
+.byte 0
+
+util_menu_msg:
+.byte "F1: ARP TABLE",13
+.byte "                     F7: MAIN MENU",13,13
 .byte 0
 
 config_menu_msg:
diff --git a/client/drivers/Makefile b/client/drivers/Makefile
index d6bebf6..d4eded6 100644
--- a/client/drivers/Makefile
+++ b/client/drivers/Makefile
@@ -11,22 +11,25 @@ AFLAGS=
 
 
 DRIVERS=\
-	apple2net.lib \
-	c64net.lib \
+	apple2prog.lib \
+	c64prog.lib \
+	c64nb65.lib \
   
 all: $(DRIVERS)
 
 
-apple2net.lib: a2print.o uthernet.o a2timer.o a2kernal.o a2input.o
-	ar65 a apple2net.lib $^
+apple2prog.lib: a2print.o uthernet.o a2timer.o a2kernal.o a2input.o
+	ar65 a $@ $^
 
-c64net.lib: c64print.o rr-net.o c64timer.o c64kernal.o c64inputs.o
-	ar65 a c64net.lib $^
+c64prog.lib: c64print.o rr-net.o c64timer.o c64kernal.o c64inputs.o
+	ar65 a $@ $^
+
+c64nb65.lib: c64print.o rr-net.o c64timer_nb65.o c64kernal.o c64inputs.o
+	ar65 a $@ $^
 
 clean:
 	rm -f *.o
-	rm -f apple2net.lib
-	rm -f c64net.lib
+	rm -f *.lib
 
 distclean: clean
 	rm -f *~
diff --git a/client/drivers/c64timer.s b/client/drivers/c64timer.s
index f13adcb..1304de6 100644
--- a/client/drivers/c64timer.s
+++ b/client/drivers/c64timer.s
@@ -2,46 +2,43 @@
 ;
 ; the timer should be a 16-bit counter that's incremented by about
 ; 1000 units per second. it doesn't have to be particularly accurate.
-; this C64 implementation requires the routine timer_vbl_handler be called 60 times per second
 
 	.include "../inc/common.i"
 
 
 	.export timer_init
 	.export timer_read
-  .export timer_vbl_handler
   
 	.code
-  .bss
-  current_time_value: .res 2
   
-	.code
-
-;reset timer to 0
-;inputs: none
-;outputs: none
+; initialize timers
 timer_init:
-  ldax  #0
-  stax current_time_value
+	lda #$80		; stop timers
+	sta $dd0e
+	sta $dd0f
+
+	ldax #999		; timer A to 1000 cycles
+	stax $dd04
+
+	ldax #$ffff		; timer B to max cycles
+	stax $dd06
+
+	lda #$81		; timer A in continuous mode
+	sta $dd0e
+
+	lda #$c1		; timer B to count timer A underflows
+	sta $dd0f
+
+	rts
+
+
+; return the current value
+timer_read:
+	lda $dd07		; cia counts backwards, return inverted value
+	eor #$ff
+	tax
+	lda $dd06
+	eor #$ff
 	rts
 
-;read the current timer value 
-; inputs: none
-; outputs: AX = current timer value (roughly equal to number of milliseconds since the last call to 'timer_init')
-timer_read:
-  ldax  current_time_value
-  rts
 
-; tick over the current timer value - should be called 60 times per second
-; inputs: none
-; outputs: none (all registers preserved, by carry flag can be modified)
-timer_vbl_handler:
-  pha
-  lda #$11
-  adc current_time_value
-  sta current_time_value
-  bcc :+
-  inc current_time_value+1
-:
-  pla
-  rts
\ No newline at end of file
diff --git a/client/drivers/c64timer_nb65.s b/client/drivers/c64timer_nb65.s
new file mode 100644
index 0000000..5f721e9
--- /dev/null
+++ b/client/drivers/c64timer_nb65.s
@@ -0,0 +1,50 @@
+; timer routines
+;
+; the timer should be a 16-bit counter that's incremented by about
+; 1000 units per second. it doesn't have to be particularly accurate.
+; this C64 implementation requires the routine timer_vbl_handler be called 60 times per second
+; this is for use in the NB65 ROM, where we also install an IRQ handler
+; for normal userland programs where it is known what else is going on with the timer ,
+; use "c64timer.s" routines instead
+
+	.include "../inc/common.i"
+
+
+	.export timer_init
+	.export timer_read
+  .export timer_vbl_handler
+  
+	
+  .bss
+  current_time_value: .res 2
+  
+	.code
+
+;reset timer to 0
+;inputs: none
+;outputs: none
+timer_init:
+  ldax  #0
+  stax current_time_value
+	rts
+
+;read the current timer value 
+; inputs: none
+; outputs: AX = current timer value (roughly equal to number of milliseconds since the last call to 'timer_init')
+timer_read:
+  ldax  current_time_value
+  rts
+
+; tick over the current timer value - should be called 60 times per second
+; inputs: none
+; outputs: none (all registers preserved, by carry flag can be modified)
+timer_vbl_handler:
+  pha
+  lda #$11
+  adc current_time_value
+  sta current_time_value
+  bcc :+
+  inc current_time_value+1
+:
+  pla
+  rts
\ No newline at end of file
diff --git a/client/inc/commonprint.i b/client/inc/commonprint.i
index 3573f43..fa9c2aa 100644
--- a/client/inc/commonprint.i
+++ b/client/inc/commonprint.i
@@ -12,15 +12,20 @@
  .export print
  .export print_decimal
  .export print_dotted_quad
+ .export print_arp_cache
+ .import arp_cache
+ .importzp ac_size
+  
 .import cs_driver_name
 .importzp copy_src
 .import cfg_tftp_server
 ;reuse the copy_src zero page var
 pptr = copy_src
+
 .bss
 temp_bin: .res 1
 temp_bcd: .res 2
-
+temp_ptr: .res 2
 .code
 .macro print_driver_init
   ldax #cs_driver_name
@@ -68,23 +73,7 @@ print_ip_config:
   jsr print
   jsr cfg_get_configuration_ptr ;ax=base config, carry flag clear
   ;first 6 bytes of cfg_get_configuration_ptr is MAC address
-  stax pptr  
-  ldy #0
-@one_mac_digit:
-  tya   ;just to set the Z flag
-  pha
-  beq @dont_print_colon
-  lda #':'
-  jsr print_a
-@dont_print_colon:
-  pla 
-  tay
-  lda (pptr),y
-  jsr print_hex
-  iny
-  cpy #06
-  bne @one_mac_digit
-  
+  jsr print_mac
   jsr print_cr
 
   ldax #ip_address_msg
@@ -144,6 +133,7 @@ print_ip_config:
 
   rts
   
+  
 print:
 	sta pptr
 	stx pptr + 1
@@ -160,6 +150,51 @@ print:
 @done_print:
   rts
 
+print_arp_cache:
+  ldax #arp_cache_header
+  jsr print
+	ldax #arp_cache
+	stax temp_ptr  
+	lda #ac_size    
+@print_one_arp_entry:
+  pha
+  lda #'$'
+  jsr print_a
+  lda temp_ptr+1
+  jsr print_hex
+  lda temp_ptr
+  jsr print_hex
+  lda #' '
+  jsr print_a
+  
+	ldax temp_ptr  
+  jsr print_mac
+  lda #' '
+  jsr print_a
+  ldax temp_ptr
+	clc
+  adc #6
+	bcc :+
+	inx
+:  
+  stax temp_ptr
+  jsr print_dotted_quad
+  ldax temp_ptr
+	clc
+  adc #4
+	bcc :+
+	inx
+: 
+  stax temp_ptr
+  jsr print_cr
+  pla
+  sec
+  sbc #1
+  
+	bne @print_one_arp_entry
+  clc
+	rts
+
 
 ;print the 4 bytes pointed at by AX as dotted decimals
 print_dotted_quad:
@@ -188,7 +223,26 @@ print_dotted_quad:
   jsr print_decimal
   
   rts
-
+  
+;print 6 bytes printed at by AX as a MAC address  
+print_mac:
+  stax pptr  
+  ldy #0
+@one_mac_digit:
+  tya   ;just to set the Z flag
+  pha
+  beq @dont_print_colon
+  lda #':'
+  jsr print_a
+@dont_print_colon:
+  pla 
+  tay
+  lda (pptr),y
+  jsr print_hex
+  iny
+  cpy #06
+  bne @one_mac_digit
+  rts
 print_decimal:  ;print byte in A as a decimal number
   pha
   sta temp_bin   ;save 
@@ -294,6 +348,9 @@ dhcp_msg:
 init_msg:
   .byte " INITIALIZING ",0
 
+arp_cache_header:
+  .byte " MEM          MAC         IP",13,0
+
 failed_msg:
 	.byte "FAILED", 0
 
diff --git a/client/inc/menu.i b/client/inc/menu.i
index 0b25367..bce2620 100644
--- a/client/inc/menu.i
+++ b/client/inc/menu.i
@@ -23,6 +23,7 @@ get_current_byte: .res 4
 
 ;on entry, AX should point to the list of null terminated option strings to be selected from
 ;on exit, AX points to the selected string
+;carry is set of QUIT was selected, clear otherwise
 select_option_from_menu:
 
   stax options_table_pointer
@@ -261,6 +262,9 @@ select_option_from_menu:
   sec
   sbc #$e1
   bcc @get_keypress ;if we have underflowed, it wasn't a valid option
+  cmp #$10  ;Q
+  beq @quit
+
   cmp #OPTIONS_PER_PAGE-1
   beq @got_valid_option
   bpl @get_keypress ;if we have underflowed, it wasn't a valid option
@@ -277,10 +281,13 @@ select_option_from_menu:
 
   jsr  @move_to_current_option
   ldax get_current_byte+1
-  
+  clc
   rts
 
-
+@quit:
+  sec
+  rts
+  
 @forward_one_page:  
   clc
   lda last_page_flag
@@ -322,6 +329,6 @@ select_option_from_menu:
 .rodata
 select_from_following_options: .byte "SELECT ONE OF THE FOLLOWING OPTIONS:",13,0
 navigation_instructions: .byte 13,"ARROW KEYS NAVIGATE BETWEEN MENU PAGES",13
-.byte "/ TO JUMP ",13
+.byte "/ TO JUMP  or Q to QUIT",13
 .byte 0
 jump_to_prompt: .byte "JUMP TO:",0
diff --git a/client/ip65/arp.s b/client/ip65/arp.s
index 36dbe79..926a367 100644
--- a/client/ip65/arp.s
+++ b/client/ip65/arp.s
@@ -6,11 +6,12 @@
 	.export arp_lookup
 	.export arp_process
 	.export arp_add 
-
+  .export arp_calculate_gateway_mask
 	.export arp_ip
 	.export arp_mac
 	.export arp_cache
-
+  .exportzp ac_size
+  
 	.import eth_inp
 	.import eth_inp_len
 	.import eth_outp
@@ -20,7 +21,7 @@
 	.import eth_set_my_mac_src
 	.import eth_set_proto
 	.importzp eth_proto_arp
-
+  
 	.import cfg_mac
 	.import cfg_ip
 	.import cfg_netmask
@@ -28,8 +29,7 @@
 
 	.import timer_read
 	.import timer_timeout
-
-
+  
 	.segment "IP65ZP" : zeropage
 
 ap:		.res 2
@@ -82,9 +82,12 @@ arp_init:
 	lda #0
 
 	ldx #(6+4)*ac_size - 1	; clear cache
-:	sta arp_cache,x
+:	
+  sta arp_cache,x
 	dex
 	bpl :-
+
+arp_calculate_gateway_mask:
 
 	lda #$ff		; counter for netmask length - 1
 	sta gw_last
@@ -221,10 +224,10 @@ arp_lookup:
 
 ; find arp_ip in the cache
 ; clc returns pointer to entry in (ap)
-findip:
-	ldax #arp_cache
-	stax ap
+findip:
 
+	ldax #arp_cache
+	stax ap  
 	ldx #ac_size
 @compare:			; compare cache entry
 	ldy #ac_ip
@@ -237,7 +240,7 @@ findip:
 	cpy #ac_ip + 4
 	bne :-
     
-	clc			; return
+	clc			; return  
 	rts
 
 @next:				; next entry
@@ -335,7 +338,7 @@ arp_process:
 
 	lda #arp_idle
 	sta arp_state
-
+  
 	rts
 
 
@@ -353,7 +356,8 @@ arp_add:
 :	lda arp,y		; move to top as well?
 	sta (ap),y
 	dey
-	bpl :-
+	bpl :-
+  
 	rts
 
 @add:
@@ -364,25 +368,22 @@ arp_add:
 ac_add_source:
 	stax ap
 
-
 	ldx #9			; make space in the arp cache
 :
 
-
-	lda arp_cache + 60,x
+	lda arp_cache + 60,x
 	sta arp_cache + 70,x
-	lda arp_cache + 50,x
+	lda arp_cache + 50,x
 	sta arp_cache + 60,x
 	lda arp_cache + 40,x
 	sta arp_cache + 50,x
-
 	lda arp_cache + 30,x
 	sta arp_cache + 40,x
 	lda arp_cache + 20,x
 	sta arp_cache + 30,x
 	lda arp_cache + 10,x
 	sta arp_cache + 20,x
-	lda arp_cache,x
+	lda arp_cache,x
 	sta arp_cache + 10,x
 
 	dex
diff --git a/client/ip65/dhcp.s b/client/ip65/dhcp.s
index ab90938..b7887ae 100644
--- a/client/ip65/dhcp.s
+++ b/client/ip65/dhcp.s
@@ -26,7 +26,7 @@ MAX_DHCP_MESSAGES_SENT=12     ;timeout after sending 12 messages will be about 1
   .import cfg_gateway
   .import cfg_dns
 
-  .import arp_init
+  .import arp_calculate_gateway_mask
 
 	.import ip65_process
 
@@ -407,7 +407,7 @@ dhcp_in:
 
 
 @finished_unpacking_dhcp_options:
-  jsr arp_init                ;we have modified our netmask, so we need to recalculate gw_test
+  jsr arp_calculate_gateway_mask                ;we have modified our netmask, so we need to recalculate gw_test
   lda dhcp_state
   cmp #dhcp_bound
   beq :+
@@ -461,6 +461,7 @@ send_dhcprequest:
 	jsr udp_send
   bcs :+            ;if we didn't send the message we probably need to wait for an ARP reply to come back.
   lda #dhcp_bound   ;technically, we should wait till we get a DHCPACK message. but we'll assume success
-	sta dhcp_state
+	sta dhcp_state  
+  rts
 :  
   rts
diff --git a/client/test/Makefile b/client/test/Makefile
index df42ff4..dffa7f4 100644
--- a/client/test/Makefile
+++ b/client/test/Makefile
@@ -6,8 +6,10 @@ AFLAGS=
 
 
 IP65LIB=../ip65/ip65.lib
-C64NETLIB=../drivers/c64net.lib
-APPLE2NETLIB=../drivers/apple2net.lib
+
+C64PROGLIB=../drivers/c64prog.lib
+C64PNB65LIB=../drivers/c64nb65.lib
+APPLE2PROGLIB=../drivers/apple2prog.lib
 
 INCFILES=\
   ../inc/common.i\
@@ -21,10 +23,10 @@ INCFILES=\
 	$(AS) $(AFLAGS) $<
 
 %.prg: %.o $(IP65LIB) $(C64NETLIB) $(INCFILES) ../cfg/c64prg.cfg
-	$(LD) -m  $*.map -C ../cfg/c64prg.cfg -o  $*.prg  $(AFLAGS) $< $(IP65LIB) $(C64NETLIB)  
+	$(LD) -m  $*.map -vm -C ../cfg/c64prg.cfg -o  $*.prg  $(AFLAGS) $< $(IP65LIB) $(C64PROGLIB)  
 
 %.pg2: %.o $(IP65LIB) $(APPLE2NETLIB) $(INCFILES) ../cfg/a2bin.cfg
-	$(LD) -m  $*.map -C ../cfg/a2bin.cfg -o  $*.pg2  $(AFLAGS) $< $(IP65LIB) $(APPLE2NETLIB)
+	$(LD) -C ../cfg/a2bin.cfg -o  $*.pg2  $(AFLAGS) $< $(IP65LIB) $(APPLE2PROGLIB)
 
 ip65test.dsk: testdns.pg2 testdottedquad.pg2
 		ripxplore.rb --init BeautifulBoot ip65test.dsk -a testdns.pg2 -t AppleBinary
diff --git a/client/test/testdns.s b/client/test/testdns.s
index 36554b4..42195d5 100644
--- a/client/test/testdns.s
+++ b/client/test/testdns.s
@@ -9,7 +9,8 @@
   .import dns_ip
   .import dns_status
   .import cfg_get_configuration_ptr
-
+  
+  
   .import  __CODE_LOAD__
   .import  __CODE_SIZE__
   .import  __RODATA_SIZE__
@@ -43,9 +44,9 @@ init:
     
   jsr print_cr
   jsr print_ip_config
- 
+  jsr print_arp_cache
   init_ip_via_dhcp 
- 
+  jsr print_arp_cache
 ;  jsr overwrite_with_hardcoded_dns_server
   jsr print_ip_config