diff --git a/app/build.gradle b/app/build.gradle
index d36f599..d11af4b 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -12,8 +12,8 @@ android {
         applicationId "com.vectras.vm"
         minSdk minApi
         targetSdk targetApi
-        versionCode 81
-        versionName "3.7.7"
+        versionCode 82
+        versionName "3.7.8"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         multiDexEnabled true
 
diff --git a/app/src/main/java/com/vectras/vm/main/core/DisplaySystem.java b/app/src/main/java/com/vectras/vm/main/core/DisplaySystem.java
index ed98d8d..aa20003 100644
--- a/app/src/main/java/com/vectras/vm/main/core/DisplaySystem.java
+++ b/app/src/main/java/com/vectras/vm/main/core/DisplaySystem.java
@@ -93,6 +93,11 @@ public class DisplaySystem {
                 );
             } else {
                 if (!isUseBuiltInX11() ) {
+                    if (!PackageUtils.isInstalled("com.termux.x11", context)) {
+                        DialogUtils.needInstallTermuxX11(context);
+                        return;
+                    }
+
                     Log.d(TAG, "launchX11: Opened: com.termux.x11.MainActivity.");
                     Intent intent = new Intent();
                     intent.setClassName("com.termux.x11", "com.termux.x11.MainActivity");
diff --git a/app/src/main/java/com/vectras/vterm/Terminal.java b/app/src/main/java/com/vectras/vterm/Terminal.java
index c97dc0b..f186892 100644
--- a/app/src/main/java/com/vectras/vterm/Terminal.java
+++ b/app/src/main/java/com/vectras/vterm/Terminal.java
@@ -359,6 +359,7 @@ public class Terminal {
     }
 
     public static StringBuilder streamLog(String command, Process process, boolean isShowResultCode) {
+        int MAX_LOG_SIZE = 200_000; // ~200KB text
         StringBuilder output = new StringBuilder();
         try {
             BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(process.getOutputStream()));
@@ -374,12 +375,22 @@ public class Terminal {
             while ((line = reader.readLine()) != null) {
                 VectrasStatus.logError("<font color='#4db6ac'>VTERM: >" + line + "</font>");
                 output.append(line).append("\n");
+
+                if (output.length() > MAX_LOG_SIZE) {
+                    int overflow = output.length() - MAX_LOG_SIZE;
+                    output.delete(0, overflow);
+                }
             }
 
             while ((line = errorReader.readLine()) != null) {
                 Log.w(TAG, line);
                 VectrasStatus.logError("<font color='red'>VTERM ERROR: >" + line + "</font>");
                 output.append(line).append("\n");
+
+                if (output.length() > MAX_LOG_SIZE) {
+                    int overflow = output.length() - MAX_LOG_SIZE;
+                    output.delete(0, overflow);
+                }
             }
 
             if (isShowResultCode) {
diff --git a/web/data/UpdateConfig.json b/web/data/UpdateConfig.json
index da2263a..9d087a9 100644
--- a/web/data/UpdateConfig.json
+++ b/web/data/UpdateConfig.json
@@ -5,11 +5,11 @@
     "url": "https://github.com/xoureldeen/Vectras-VM-Android/releases",
     "Message": "<h2>3.7.0</h2>\nBugs fixed.",
     "cancellable": true,
-    "versionCodeBeta":"81",
-    "versionNameBeta":"3.7.7",
-    "versionNameBetas":"3.0.0,3.1.0,3.2.1,3.2.2,3.2.3,3.2.4,3.2.5,3.2.6,3.2.7,3.2.8,3.2.9,3.2.10,3.3.1,3.3.2,3.3.3,3.3.4,3.3.5,3.3.6,3.3.7,3.3.8,3.3.9,3.4.1,3.4.2,3.4.3,3.4.4,3.4.5,3.4.6,3.4.7,3.4.8,3.4.9,3.5.1,3.5.2,3.5.3,3.5.4,3.5.5,3.5.6,3.5.7,3.5.8,3.5.9,3.6.1,3.6.2,3.6.3,3.6.4,3.6.5,3.6.6,3.6.7,3.6.8,3.6.9,3.7.1,3.7.2,3.7.3,3.7.4,3.7.5,3.7.6,3.7.7",
+    "versionCodeBeta":"82",
+    "versionNameBeta":"3.7.8",
+    "versionNameBetas":"3.0.0,3.1.0,3.2.1,3.2.2,3.2.3,3.2.4,3.2.5,3.2.6,3.2.7,3.2.8,3.2.9,3.2.10,3.3.1,3.3.2,3.3.3,3.3.4,3.3.5,3.3.6,3.3.7,3.3.8,3.3.9,3.4.1,3.4.2,3.4.3,3.4.4,3.4.5,3.4.6,3.4.7,3.4.8,3.4.9,3.5.1,3.5.2,3.5.3,3.5.4,3.5.5,3.5.6,3.5.7,3.5.8,3.5.9,3.6.1,3.6.2,3.6.3,3.6.4,3.6.5,3.6.6,3.6.7,3.6.8,3.6.9,3.7.1,3.7.2,3.7.3,3.7.4,3.7.5,3.7.6,3.7.7,3.7.8",
     "sizeBeta": "45 MB",
     "urlBeta": "https://github.com/AnBui2004/Vectras-VM-Emu-Android/releases",
-    "MessageBeta": "<h2>3.7.7</h2>Bugs fixed.",
+    "MessageBeta": "<h2>3.7.8</h2>Bugs fixed.",
     "cancellableBeta": true
 }