diff --git a/lib/VGA_ctrl/src/vga_frontend64.vhd b/lib/VGA_ctrl/src/vga_frontend64.vhd
index 7d6a952..707d851 100644
--- a/lib/VGA_ctrl/src/vga_frontend64.vhd
+++ b/lib/VGA_ctrl/src/vga_frontend64.vhd
@@ -357,20 +357,15 @@ pixel_counter:
 			if pixel_cnt_rst = '1' then
 				pixel_cnt	:= 0;
 				front		:= host_fb_front;
-				back		:= host_fb_back;
 			elsif request_cnt_en = '1' and SRDY_I = '1' then
 				if pixel_cnt /= MAX_REQUEST_CNT/2-1 then
 					pixel_cnt 	:= pixel_cnt + 1;
 				else
 					pixel_cnt	:= 0;
-					front		:= vga_fb_back;
-					back		:= vga_fb_front;
+					front		:= host_fb_back;
 					bufchg		<= '1';
 				end if;	
  			end if;	
- 			if host_fb_back_we = '1' then
- 				back		:= host_fb_back;
- 			end if;
 			vga_fb_front	<= front;
  			vga_fb_back		<= back;
  			ADDR_O			<= front + (to_unsigned(pixel_cnt, 29) & "000");
@@ -487,7 +482,7 @@ registers_write:
 				vga_master_en	<= '0';
 				bufchg_irq_en	<= '0';
 				host_fb_front	<= X"40000000";
-				host_fb_back	<= X"40004000";
+				host_fb_back	<= X"40010000";
 				cg_color		<= (X"FF", X"FF", X"FF", X"FF");
 			elsif (STB_I and CYC_I and WE_I) = '1' then
 				case ADDR_I(5 downto 2) is