Some changes

.classpath

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
 	<classpathentry kind="src" path="src"/>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-9">
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-12">
 		<attributes>
 			<attribute name="module" value="true"/>
 		</attributes>

.settings/org.eclipse.jdt.core.prefs

@@ -1,13 +1,15 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
 org.eclipse.jdt.core.compiler.codegen.methodParameters=generate
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=9
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=12
 org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=9
+org.eclipse.jdt.core.compiler.compliance=12
 org.eclipse.jdt.core.compiler.debug.lineNumber=generate
 org.eclipse.jdt.core.compiler.debug.localVariable=generate
 org.eclipse.jdt.core.compiler.debug.sourceFile=generate
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
 org.eclipse.jdt.core.compiler.release=enabled
-org.eclipse.jdt.core.compiler.source=9
+org.eclipse.jdt.core.compiler.source=12

install_content

@@ -1,4 +1,4 @@
-VER 19.04-pre
+VER 20.04-pre
 LABEL Downloading System Components.
 MKDIR System
 MKDIR System/Components
@@ -16,9 +16,15 @@ DOWN System/Resources/Images/Cursors/LoadingCursor.png
 LABEL Downloading logo..
 DOWN System/Resources/Images/JEternalLogo128.png
 DOWN System/Resources/Images/JEternalLogo32.png
-DOWN System/Resources/Images/JEternalLogo612.png
 LABEL Downloading images..
 DOWN System/Resources/Images/FileDefaultIcon.png
+LABEL Downloading audio..
+MKDIR System/Resources/Audio
+DOWN System/Resources/Audio/login.wav
+DOWN System/Resources/Audio/notification.wav
+DOWN System/Resources/Audio/notification2.wav
+DOWN System/Resources/Audio/shutdown.wav
+DOWN System/Resources/Audio/startup.wav
 LABEL Downloading system applications..
 MKDIR System/SysApps
 DOWN System/SysApps/Pictures.eef

src/org/jeternal/internal/Jeternal.java

@@ -42,7 +42,7 @@ public class Jeternal {
 
 	public static JFrame jEternal;
 	public static Desktop desktop;
-	public final static String jEternalVersion = "19.04-beta";
+	public final static String jEternalVersion = "20.04-beta";
 	static double renderTime = 1000000000.0 / 24;
 	public static SystemLibrary IO_LIB;
 	public static SystemComponent IO_MAIN_COMPONENT;
@@ -160,7 +160,6 @@ public void windowClosing(WindowEvent e) {
 
 		});
 		AudioSystem.play(new File("vfs/System/Resources/Audio/startup.wav"));
-		jEternal.setVisible(true);
 		if (Files.exists(Paths.get("vfs/System/account.uac"))) {
 			login = new LoginScreen();
 			jEternal.add(login);
@@ -171,7 +170,6 @@ public void windowClosing(WindowEvent e) {
 			jEternal.add(desktop);
 			init();
 		}
-		jEternal.dispose();
 		jEternal.setVisible(true);
 		Thread th = new Thread() {
 			@Override

src/org/jeternal/internal/eef/js/UI.java

@@ -125,6 +125,13 @@ public void setFullscreenMode(int i, DisplayMode req) {
 				Jeternal.jEternal.setUndecorated(true);
 				Jeternal.jEternal.setVisible(true);
 				Jeternal.jEternal.setExtendedState(JFrame.MAXIMIZED_BOTH);
+			} else {
+				if (Jeternal.jEternal.isUndecorated()) {
+					Jeternal.jEternal.dispose();
+					Jeternal.jEternal.setUndecorated(false);
+					Jeternal.jEternal.setVisible(true);
+					Jeternal.jEternal.setExtendedState(JFrame.NORMAL);
+				}
 			}
 		}
 		if (i != 1) {