diff --git a/app/CLI.cs b/app/CLI.cs
index 769d6de..3df6eac 100644
--- a/app/CLI.cs
+++ b/app/CLI.cs
@@ -9,8 +9,6 @@ namespace ParsecVDisplay
 {
     internal static class CLI
     {
-        static StreamWriter _stdOutWriter;
-
         public static int Execute(string[] args)
         {
             AttachConsole(-1);
diff --git a/app/Languages/zh.xaml b/app/Languages/zh.xaml
index f8ce42b..520d6c8 100644
--- a/app/Languages/zh.xaml
+++ b/app/Languages/zh.xaml
@@ -36,19 +36,19 @@
     
     <!--Dialog messages-->
     <system:String x:Key="t_msg_up_to_date">您的应用程序版本已经是最新的。</system:String>
-    <system:String x:Key="t_msg_update_available">有新的更新可用 — v{0} 。\n为了保持您的最佳体验，请立即更新。"</system:String>
+    <system:String x:Key="t_msg_update_available">有新的更新可用 — v{0}。\n为了保持您的最佳体验，请立即更新。"</system:String>
     
     <system:String x:Key="t_msg_custom_access_denied">无法应用自定义分辨率，访问被拒绝！</system:String>
     <system:String x:Key="t_msg_custom_invalid_slot">插槽 #{0} 中的值无效。</system:String>
 
-    <system:String x:Key="t_msg_exceeded_display_limit">到达最大虚拟显示器限额，无法添加更多的虚拟显示器。 ({0}).</system:String>
+    <system:String x:Key="t_msg_exceeded_display_limit">到达最大虚拟显示器限额，无法添加更多的虚拟显示器 ({0})。</system:String>
     <system:String x:Key="t_msg_prompt_leave_all">即将删除全部的虚拟显示器。\n您是否仍然要退出？</system:String>
 
     <system:String x:Key="t_msg_driver_status">驱动状态</system:String>
     <system:String x:Key="t_msg_must_restart_pc">你需要重新启动计算机才能使驱动程序正常工作</system:String>
     <system:String x:Key="t_msg_driver_is_disabled">{0} 已禁用，请在设备管理器中启用它。</system:String>
     <system:String x:Key="t_msg_please_install_driver">请先安装驱动程序。</system:String>
-    <system:String x:Key="t_msg_driver_status_not_ok">驱动程序不正常，请重新检查。当前状态： {0}.</system:String>
+    <system:String x:Key="t_msg_driver_status_not_ok">驱动程序不正常，请重新检查。当前状态： {0}。</system:String>
     <system:String x:Key="t_msg_failed_to_obtain_handle">无法获取设备句柄，请重新检查驱动程序安装。</system:String>
     
 </ResourceDictionary>
\ No newline at end of file
diff --git a/app/Tray.cs b/app/Tray.cs
index edd4ade..b0f3d6e 100644
--- a/app/Tray.cs
+++ b/app/Tray.cs
@@ -13,9 +13,7 @@ namespace ParsecVDisplay
         static IWin32Window Owner => new Helper.ArbitraryWindow(MainWindow.Handle);
 
         NotifyIcon TrayIcon;
-        static System.Windows.Controls.ContextMenu Menu;
-
-        Thread AppThread;
+        Thread GuiThread;
 
         ToolStripMenuItem MI_Language;
 
@@ -45,10 +43,10 @@ namespace ParsecVDisplay
         {
             Instance = this;
 
-            AppThread = new Thread(App.Main);
-            AppThread.IsBackground = true;
-            AppThread.SetApartmentState(ApartmentState.STA);
-            AppThread.Start();
+            GuiThread = new Thread(App.Main);
+            GuiThread.IsBackground = true;
+            GuiThread.SetApartmentState(ApartmentState.STA);
+            GuiThread.Start();
 
             var appName = $"{Program.AppName} v{Program.AppVersion}";
             var appIcon = Icon.ExtractAssociatedIcon(Application.ExecutablePath);
@@ -117,11 +115,6 @@ namespace ParsecVDisplay
             });
         }
 
-        void VddTimer_Tick(object sender, EventArgs e)
-        {
-            ParsecVDD.Ping();
-        }
-
         void RestoreDisplays()
         {
             ParsecVDD.Ping();
@@ -297,7 +290,7 @@ namespace ParsecVDisplay
             }
 
             App.Current?.Dispatcher.Invoke(App.Current.Shutdown);
-            AppThread.Join();
+            GuiThread.Join();
 
             TrayIcon.Visible = false;
             Application.Exit();