diff --git a/src/emu/machine/stvcd.c b/src/emu/machine/stvcd.c
index a0f2de45626..eda4cd6f72c 100644
--- a/src/emu/machine/stvcd.c
+++ b/src/emu/machine/stvcd.c
@@ -688,6 +688,16 @@ void saturn_state::cd_exec_command( void )
 				cr2 = 0;
 				cr3 = 0;
 				cr4 = 0;
+
+
+				if(machine().input().code_pressed(KEYCODE_Z))
+				{
+					cr1 = cd_stat | (machine().rand() & 0xff);
+					cr2 = machine().rand();
+					cr3 = machine().rand();
+					cr4 = machine().rand();
+				}
+
 				hirqreg |= (CMOK|ESEL);
 			}
 			break;
diff --git a/src/emu/video/stvvdp1.c b/src/emu/video/stvvdp1.c
index 37d3325ecab..751a65504ee 100644
--- a/src/emu/video/stvvdp1.c
+++ b/src/emu/video/stvvdp1.c
@@ -182,8 +182,23 @@ READ16_MEMBER( saturn_state::saturn_vdp1_regs_r )
 
 void saturn_state::stv_clear_framebuffer( int which_framebuffer )
 {
+	int start_x, end_x, start_y, end_y;
+
+	/*
+	TODO: needs to check in Hi-Res mode
+	*/
+	start_x = STV_VDP1_EWLR_X1 * 8;
+	start_y = STV_VDP1_EWLR_Y1;
+	end_x = STV_VDP1_EWRR_X3 * 8;
+	end_y = STV_VDP1_EWRR_Y3+1;
+//	popmessage("%d %d %d %d",STV_VDP1_EWLR_X1,STV_VDP1_EWLR_Y1,STV_VDP1_EWRR_X3,STV_VDP1_EWRR_Y3);
+
+	for(int y=start_y;y<end_y;y++)
+		for(int x=start_x;x<end_x;x++)
+			m_vdp1.framebuffer[ which_framebuffer ][(x+y*512)] = m_vdp1.ewdr;
+
 	if ( VDP1_LOG ) logerror( "Clearing %d framebuffer\n", m_vdp1.framebuffer_current_draw );
-	memset( m_vdp1.framebuffer[ which_framebuffer ], m_vdp1.ewdr, 1024 * 256 * sizeof(UINT16) * 2 );
+//	memset( m_vdp1.framebuffer[ which_framebuffer ], m_vdp1.ewdr, 1024 * 256 * sizeof(UINT16) * 2 );
 }
 
 
diff --git a/src/emu/video/stvvdp2.c b/src/emu/video/stvvdp2.c
index 12e5240c756..294ace40fad 100644
--- a/src/emu/video/stvvdp2.c
+++ b/src/emu/video/stvvdp2.c
@@ -4472,8 +4472,9 @@ void saturn_state::stv_vdp2_check_tilemap(bitmap_rgb32 &bitmap, const rectangle
 		/* Magical Drop III 0x200 -> color calculation window */
 		/* Ide Yousuke Meijin No Shin Jissen Mahjong 0x0303 */
 		/* Decathlete 0x088 */
-		if(STV_VDP2_WCTLD & 0x2000)
-			popmessage("Special window enabled %04x, contact MAMEdev",STV_VDP2_WCTLD);
+		/* Sexy Parodius 0x2300 */
+//		if(STV_VDP2_WCTLD & 0x2000)
+//			popmessage("Special window enabled %04x, contact MAMEdev",STV_VDP2_WCTLD);
 
 		/* Shining Force III, After Burner 2 (doesn't make a proper use tho?) */
 		/* Layer Section */