diff --git a/cores/sms/src/sms_mist.vhd b/cores/sms/src/sms_mist.vhd
index c2b8359..1f5d121 100644
--- a/cores/sms/src/sms_mist.vhd
+++ b/cores/sms/src/sms_mist.vhd
@@ -143,6 +143,7 @@ architecture Behavioral of sms_mist is
            status: out std_logic_vector(7 downto 0);
            SWITCHES : out std_logic_vector(1 downto 0);
            BUTTONS : out std_logic_vector(1 downto 0);
+			  scandoubler_disable : out std_logic;
           -- clk : in std_logic;
            ps2_clk : out std_logic;
            ps2_data : out std_logic
@@ -299,7 +300,7 @@ begin
 		vs_out => sd_vs
 	);
 
-	scandoubler_disable <= '1';
+	--scandoubler_disable <= '1';
 	VGA_HS <= not(hs xor vs) when scandoubler_disable = '1' else sd_hs;
 	VGA_VS <= '1' when scandoubler_disable = '1' else sd_vs;
 	
@@ -392,6 +393,7 @@ begin
       JOY1 => joy1,
       SWITCHES => switches,
       BUTTONS => buttons,
+		scandoubler_disable => scandoubler_disable,
      -- clk => open,
       ps2_clk => open,
       ps2_data => open
diff --git a/cores/sms/src/user_io.v b/cores/sms/src/user_io.v
index 3f534c9..5307ec3 100644
--- a/cores/sms/src/user_io.v
+++ b/cores/sms/src/user_io.v
@@ -34,8 +34,9 @@ module user_io #(parameter STRLEN=0) (
 	output [5:0] 	JOY1,
 	output [1:0] 	BUTTONS,
 	output [1:0] 	SWITCHES,
-
-	output reg [7:0]   status,
+	output			scandoubler_disable,
+	
+	output reg [7:0]	status,
 		
 	input 	  		clk,
 	output	 		ps2_clk,
@@ -48,12 +49,13 @@ reg [2:0] 	      bit_cnt;    // counts bits 0-7 0-7 ...
 reg [7:0]         byte_cnt;   // counts bytes
 reg [5:0]         joystick0;
 reg [5:0]         joystick1;
-reg [3:0] 	      but_sw;
+reg [4:0] 	      but_sw;
 
 assign JOY0 = joystick0;
 assign JOY1 = joystick1;
 assign BUTTONS = but_sw[1:0];
 assign SWITCHES = but_sw[3:2];
+assign scandoubler_disable = but_sw[4];
 
 // this variant of user_io is for 8 bit cores (type == a4) only
 wire [7:0] core_type = 8'ha4;
@@ -164,7 +166,7 @@ always@(posedge SPI_CLK or posedge SPI_SS_IO) begin
 
 			if(byte_cnt != 0) begin
 				if(cmd == 8'h01)
-					but_sw <= { sbuf[2:0], SPI_MOSI }; 
+					but_sw <= { sbuf[3:0], SPI_MOSI }; 
 
 				if(cmd == 8'h02)
 					joystick0 <= { sbuf[4:0], SPI_MOSI };