diff --git a/src/mame/drivers/aristmk5.c b/src/mame/drivers/aristmk5.c
index baf91f1404d..6bc00e50ab4 100644
--- a/src/mame/drivers/aristmk5.c
+++ b/src/mame/drivers/aristmk5.c
@@ -93,6 +93,20 @@ ROM_START( indiandr )
 	ROM_LOAD32_WORD( "indiandr.u12", 0x100002, 0x80000, CRC(4bbe67f6) SHA1(928f88387da66697f1de54f086531f600f80a15e) )
 ROM_END
 
+ROM_START( dolphntr )
+	ROM_REGION( 0x800000, "maincpu", 0 ) /* ARM Code */
+	ROM_LOAD32_WORD( "0100424v.u7",  0x000000, 0x80000, CRC(657faef7) SHA1(09e1f9d461e855c10cf8b825ef83dd3e7db65b43) )
+	ROM_LOAD32_WORD( "0100424v.u11", 0x000002, 0x80000, CRC(65aa46ec) SHA1(3ad4270efbc2e947097d94a3258a544d79a1d599) )
+	ROM_LOAD32_WORD( "0100424v.u8",  0x100000, 0x80000, CRC(e77868ad) SHA1(3345da120075bc0da47bac0a4840790693382620) )
+	ROM_LOAD32_WORD( "0100424v.u12", 0x100002, 0x80000, CRC(6abd9309) SHA1(c405a13f5bfe447c1ab20d92e140e4fb145920d4) )
+ROM_END
+
+ROM_START( dolphtra )
+	ROM_REGION( 0x800000, "maincpu", 0 ) /* ARM Code */
+	ROM_LOAD32_WORD( "0200424v.u7",  0x000000, 0x80000, CRC(5dd88306) SHA1(ee8ec7d123d057e8df9be0e8dadecea7dab7aafd) )
+	ROM_LOAD32_WORD( "0200424v.u11", 0x000002, 0x80000, CRC(bcb732ea) SHA1(838300914846c6e740780e5a24b9db7304a8a88d) )
+ROM_END
+
 ROM_START( goldprmd )
 	ROM_REGION( 0x800000, "maincpu", 0 ) /* ARM Code */
 	ROM_LOAD32_WORD( "goldprmd.u7",  0x000000, 0x80000, CRC(2fbed80c) SHA1(fb0d97cb2be96da37c487fc3aef06c6120efdb46) )
@@ -150,6 +164,8 @@ ROM_END
 
 GAME( 1995, swthrt2v, 0, aristmk5, aristmk5, aristmk5, ROT0,  "Aristocrat", "Sweet Hearts II (C - 07/09/95, Venezuela version)", GAME_NOT_WORKING|GAME_NO_SOUND )
 GAME( 1995, enchfrst, 0, aristmk5, aristmk5, aristmk5, ROT0,  "Aristocrat", "Enchanted Forest (E - 23/06/95, Local)", GAME_NOT_WORKING|GAME_NO_SOUND )
+GAME( 1996, dolphntr, 0, aristmk5, aristmk5, aristmk5, ROT0,  "Aristocrat", "Dolphin Treasure (B - 06/12/96, NSW/ACT, Rev 1.24.4.0)", GAME_NOT_WORKING|GAME_NO_SOUND )
+GAME( 1996, dolphtra, 0, aristmk5, aristmk5, aristmk5, ROT0,  "Aristocrat", "Dolphin Treasure (B - 06/12/96, NSW/ACT, Rev 3)", GAME_NOT_WORKING|GAME_NO_SOUND )
 GAME( 1997, goldprmd, 0, aristmk5, aristmk5, aristmk5, ROT0,  "Aristocrat", "Golden Pyramids (B - 13-05-97, USA)", GAME_NOT_WORKING|GAME_NO_SOUND )
 GAME( 1997, qotn,	  0, aristmk5, aristmk5, aristmk5, ROT0,  "Aristocrat", "Queen of the Nile (B - 13-05-97, NSW/ACT)", GAME_NOT_WORKING|GAME_NO_SOUND )
 GAME( 1997, dmdtouch, 0, aristmk5, aristmk5, aristmk5, ROT0,  "Aristocrat", "Diamond Touch (E - 30-06-97, Local)", GAME_NOT_WORKING|GAME_NO_SOUND )
diff --git a/src/mame/drivers/mpu4.c b/src/mame/drivers/mpu4.c
index c441154ac30..e5dad309d11 100644
--- a/src/mame/drivers/mpu4.c
+++ b/src/mame/drivers/mpu4.c
@@ -398,7 +398,7 @@ static void update_lamps(void)
 	}
 
 	/* Lamp smoothing, this draws lamps only at the peaks of the AC power that would light them */
-	if ((multiplex_smooth == (input_strobe - 1))||((multiplex_smooth == 7) && (input_strobe == 0))||(multiplex_smooth == input_strobe))
+	if ((multiplex_smooth == (input_strobe - 1))||((multiplex_smooth == 7) && (input_strobe == 0)))
 	{
 		draw_lamps();
 		mpu4_draw_led(input_strobe, led_segs[input_strobe]);
diff --git a/src/mame/layout/connect4.lay b/src/mame/layout/connect4.lay
index a82da8537aa..580b8f8854a 100644
--- a/src/mame/layout/connect4.lay
+++ b/src/mame/layout/connect4.lay
@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
 <mamelayout version="2">
-	<element name="digit">
+	<element name="digit" defstate="0">
 	<led7seg>
 			<color red="1.0" green="0.0" blue="0.0" />
 	</led7seg>
@@ -84,28 +84,28 @@
 
 	<element name="O" defstate="0">
 		<text string="O" state="1">
-			<color red="1.0" green="0.0" blue="0.0" />
+			<color red="1.0" green="1.0" blue="0.0" />
 			<bounds x="0" y="0.1" width="1" height="0.8" />
 		</text>
 	</element>
 
 	<element name="N" defstate="0">
 		<text string="N" state="1">
-			<color red="1.0" green="0.0" blue="0.0" />
+			<color red="1.0" green="1.0" blue="0.0" />
 			<bounds x="0" y="0.1" width="1" height="0.8" />
 		</text>
 	</element>
 
 	<element name="E" defstate="0">
 		<text string="E" state="1">
-			<color red="1.0" green="0.0" blue="0.0" />
+			<color red="1.0" green="1.0" blue="0.0" />
 			<bounds x="0" y="0.1" width="1" height="0.8" />
 		</text>
 	</element>
 
 	<element name="T" defstate="0">
 		<text string="T" state="1">
-			<color red="1.0" green="0.0" blue="0.0" />
+			<color red="1.0" green="1.0" blue="0.0" />
 			<bounds x="0" y="0.1" width="1" height="0.8" />
 		</text>
 	</element>
@@ -229,46 +229,46 @@
 		<backdrop name="blank" element="emptypiece" state="0">
 			<bounds x="48" y="14" width="7" height="7"/>
 		</backdrop>
-		<backdrop name="lamp24" element="bluepiece" state="0">
+		<backdrop name="lamp24" element="redpiece" state="0">
 			<bounds x="0" y="14" width="7" height="7"/>
 		</backdrop>
-		<backdrop name="lamp25" element="bluepiece" state="0">
+		<backdrop name="lamp25" element="redpiece" state="0">
 			<bounds x="8" y="14" width="7" height="7"/>
 		</backdrop>
-		<backdrop name="lamp26" element="bluepiece" state="0">
+		<backdrop name="lamp26" element="redpiece" state="0">
 			<bounds x="16" y="14" width="7" height="7"/>
 		</backdrop>
-		<backdrop name="lamp27" element="bluepiece" state="0">
+		<backdrop name="lamp27" element="redpiece" state="0">
 			<bounds x="24" y="14" width="7" height="7"/>
 		</backdrop>
-		<backdrop name="lamp28" element="bluepiece" state="0">
+		<backdrop name="lamp28" element="redpiece" state="0">
 			<bounds x="32" y="14" width="7" height="7"/>
 		</backdrop>
-		<backdrop name="lamp29" element="bluepiece" state="0">
+		<backdrop name="lamp29" element="redpiece" state="0">
 			<bounds x="40" y="14" width="7" height="7"/>
 		</backdrop>
-		<backdrop name="lamp30" element="bluepiece" state="0">
+		<backdrop name="lamp30" element="redpiece" state="0">
 			<bounds x="48" y="14" width="7" height="7"/>
 		</backdrop>
-		<backdrop name="lamp16" element="redpiece" state="0">
+		<backdrop name="lamp16" element="bluepiece" state="0">
 			<bounds x="0" y="14" width="7" height="7"/>
 		</backdrop>
 		<backdrop name="lamp17" element="redpiece" state="0">
 			<bounds x="8" y="14" width="7" height="7"/>
 		</backdrop>
-		<backdrop name="lamp18" element="redpiece" state="0">
+		<backdrop name="lamp18" element="bluepiece" state="0">
 			<bounds x="16" y="14" width="7" height="7"/>
 		</backdrop>
-		<backdrop name="lamp19" element="redpiece" state="0">
+		<backdrop name="lamp19" element="bluepiece" state="0">
 			<bounds x="24" y="14" width="7" height="7"/>
 		</backdrop>
-		<backdrop name="lamp20" element="redpiece" state="0">
+		<backdrop name="lamp20" element="bluepiece" state="0">
 			<bounds x="32" y="14" width="7" height="7"/>
 		</backdrop>
-		<backdrop name="lamp21" element="redpiece" state="0">
+		<backdrop name="lamp21" element="bluepiece" state="0">
 			<bounds x="40" y="14" width="7" height="7"/>
 		</backdrop>
-		<backdrop name="lamp22" element="redpiece" state="0">
+		<backdrop name="lamp22" element="bluepiece" state="0">
 			<bounds x="48" y="14" width="7" height="7"/>
 		</backdrop>
 		<backdrop name="blank" element="emptypiece" state="0">
diff --git a/src/mame/mamedriv.c b/src/mame/mamedriv.c
index c119f2d2abd..7534e315591 100644
--- a/src/mame/mamedriv.c
+++ b/src/mame/mamedriv.c
@@ -9088,6 +9088,8 @@ Other Sun games
 	/* Aristocrat Mk5 hardware */
 	DRIVER( swthrt2v )	/* (c) 1995 */
 	DRIVER( enchfrst )	/* (c) 1995 */
+	DRIVER( dolphntr )	/* (c) 1996 */
+	DRIVER( dolphtra )	/* (c) 1996 */	
 	DRIVER( dmdtouch )	/* (c) 1997 */
 	DRIVER( goldprmd )	/* (c) 1997 */
 	DRIVER( qotn )		/* (c) 1997 */