diff --git a/A320-main.xml b/A320-main.xml
index 666e4916..32884265 100644
--- a/A320-main.xml
+++ b/A320-main.xml
@@ -599,6 +599,8 @@
 				<du4 type="double">1</du4>
 				<du5 type="double">1</du5>
 				<du6 type="double">1</du6>
+				<mcdu1 type="double">1</mcdu1>
+				<mcdu2 type="double">1</mcdu2>
 			</DU>
 			<beacon type="bool">0</beacon>
 			<interior type="double">0</interior>
diff --git a/Models/Instruments/Lower-ECAM/Lower-ECAM.nas b/Models/Instruments/Lower-ECAM/Lower-ECAM.nas
index f9dc911d..c8cc4833 100644
--- a/Models/Instruments/Lower-ECAM/Lower-ECAM.nas
+++ b/Models/Instruments/Lower-ECAM/Lower-ECAM.nas
@@ -110,7 +110,7 @@ var canvas_lowerECAM_base = {
 			setprop("/instrumentation/du/du4-test", 0);
 		}
 		
-		if (getprop("/systems/electrical/bus/ac2") >= 110 and getprop("/controls/lighting/DU/du4") > 0) {
+		if (getprop("/systems/electrical/bus/ac2") >= 110 and getprop("/controls/lighting/DU/du4") > 0.01) {
 			if (getprop("/instrumentation/du/du4-test-time") + getprop("/instrumentation/du/du4-test-amount") >= elapsedtime) {
 				lowerECAM_apu.page.hide();
 				lowerECAM_bleed.page.hide();
diff --git a/Models/Instruments/PFD/PFD.nas b/Models/Instruments/PFD/PFD.nas
index 300cf3c1..b61ada7f 100644
--- a/Models/Instruments/PFD/PFD.nas
+++ b/Models/Instruments/PFD/PFD.nas
@@ -246,7 +246,7 @@ var canvas_PFD_base = {
 		if (acconfig_mismatch.getValue() == "0x000") {
 			PFD_1_mismatch.page.hide();
 			PFD_2_mismatch.page.hide();
-			if (acess.getValue() >= 110 and du1_lgt.getValue() > 0) {
+			if (acess.getValue() >= 110 and du1_lgt.getValue() > 0.01) {
 				if (du1_test_time.getValue() + du1_test_amount.getValue() >= elapsedtime_act and cpt_du_xfr.getValue() != 1) {
 					PFD_1_test.update();
 					updateL = 0;
@@ -269,7 +269,7 @@ var canvas_PFD_base = {
 				PFD_1_test.page.hide();
 				PFD_1.page.hide();
 			}
-			if (ac2.getValue() >= 110 and du6_lgt.getValue() > 0) {
+			if (ac2.getValue() >= 110 and du6_lgt.getValue() > 0.01) {
 				if (du6_test_time.getValue() + du6_test_amount.getValue() >= elapsedtime_act and fo_du_xfr.getValue() != 1) {
 					PFD_2_test.update();
 					updateR = 0;
diff --git a/Models/Instruments/Upper-ECAM/Upper-ECAM.nas b/Models/Instruments/Upper-ECAM/Upper-ECAM.nas
index 557b275e..3af40c9e 100644
--- a/Models/Instruments/Upper-ECAM/Upper-ECAM.nas
+++ b/Models/Instruments/Upper-ECAM/Upper-ECAM.nas
@@ -138,7 +138,7 @@ var canvas_upperECAM_base = {
 		}
 		
 		cur_eng_option = eng_option.getValue();
-		if (acess.getValue() >= 110 and du3_lgt.getValue() > 0) {
+		if (acess.getValue() >= 110 and du3_lgt.getValue() > 0.01) {
 			if (du3_test_time.getValue() + du3_test_amount.getValue() >= elapsedtime) {
 				upperECAM_cfm_eis2.page.hide();
 				upperECAM_iae_eis2.page.hide();
diff --git a/Nasal/MCDU1/MCDU.nas b/Nasal/MCDU1/MCDU.nas
index 9091098f..d5e06011 100644
--- a/Nasal/MCDU1/MCDU.nas
+++ b/Nasal/MCDU1/MCDU.nas
@@ -5,7 +5,6 @@
 ##############################################
 
 var MCDU_init = func {
-	setprop("/MCDU[0]/brightness", "1.0");
 	MCDU_reset(); # Reset MCDU, clears data
 }
 
diff --git a/Nasal/MCDU2/MCDU.nas b/Nasal/MCDU2/MCDU.nas
index 12640f77..c8f7b4d5 100644
--- a/Nasal/MCDU2/MCDU.nas
+++ b/Nasal/MCDU2/MCDU.nas
@@ -5,7 +5,6 @@
 ##############################################
 
 var MCDU_init = func {
-	setprop("/MCDU[1]/brightness", "1.0");
 	MCDU_reset(); # Reset MCDU, clears data
 }
 
diff --git a/Nasal/buttons.nas b/Nasal/buttons.nas
index 525f2ffd..072407e2 100644
--- a/Nasal/buttons.nas
+++ b/Nasal/buttons.nas
@@ -48,6 +48,8 @@ var variousReset = func {
 	setprop("/controls/lighting/DU/du4", 1);
 	setprop("/controls/lighting/DU/du5", 1);
 	setprop("/controls/lighting/DU/du6", 1);
+	setprop("/controls/lighting/DU/mcdu1", 1);
+	setprop("/controls/lighting/DU/mcdu2", 1);
 	setprop("/modes/fcu/hdg-time", 0);
 	setprop("/controls/switching/ATTHDG", 0);
 	setprop("/controls/switching/AIRDATA", 0);
diff --git a/revision.txt b/revision.txt
index 421c7926..f392d694 100644
--- a/revision.txt
+++ b/revision.txt
@@ -1 +1 @@
-4691
\ No newline at end of file
+4692
\ No newline at end of file