diff --git a/shadowsocks-csharp/View/MenuViewController.cs b/shadowsocks-csharp/View/MenuViewController.cs
index fc942835..0c087ef6 100755
--- a/shadowsocks-csharp/View/MenuViewController.cs
+++ b/shadowsocks-csharp/View/MenuViewController.cs
@@ -82,17 +82,16 @@ namespace Shadowsocks.View
 
             Configuration config = controller.GetConfigurationCopy();
 
-            if (config.autoCheckUpdate)
-            {
-                _isStartupChecking = true;
-                updateChecker.CheckUpdate(config, 3000);
-            }
-
             if (config.isDefault)
             {
                 _isFirstRun = true;
                 ShowConfigForm();
             }
+            else if(config.autoCheckUpdate)
+            {
+                _isStartupChecking = true;
+                updateChecker.CheckUpdate(config, 3000);
+            }
         }
 
         void controller_Errored(object sender, System.IO.ErrorEventArgs e)
@@ -262,12 +261,10 @@ namespace Shadowsocks.View
             if (updateChecker.NewVersionFound)
             {
                 ShowBalloonTip(String.Format(I18N.GetString("Shadowsocks {0} Update Found"), updateChecker.LatestVersionNumber), I18N.GetString("Click here to update"), ToolTipIcon.Info, 5000);
-                _isFirstRun = false;
             }
             else if (!_isStartupChecking)
             {
                 ShowBalloonTip(I18N.GetString("Shadowsocks"), I18N.GetString("No update is available"), ToolTipIcon.Info, 5000);
-                _isFirstRun = false;
             }
             _isStartupChecking = false;
         }
@@ -389,7 +386,12 @@ namespace Shadowsocks.View
         {
             configForm = null;
             Utils.ReleaseMemory(true);
-            ShowFirstTimeBalloon();
+            if (_isFirstRun)
+            {
+                CheckUpdateForFirstRun();
+                ShowFirstTimeBalloon();
+                _isFirstRun = false;
+            }
         }
 
         private void Config_Click(object sender, EventArgs e)
@@ -404,18 +406,24 @@ namespace Shadowsocks.View
             Application.Exit();
         }
 
-        private void ShowFirstTimeBalloon()
+        private void CheckUpdateForFirstRun()
         {
-            if (_isFirstRun)
+            Configuration config = controller.GetConfigurationCopy();
+            if (!config.isDefault)
             {
-                _notifyIcon.BalloonTipTitle = I18N.GetString("Shadowsocks is here");
-                _notifyIcon.BalloonTipText = I18N.GetString("You can turn on/off Shadowsocks in the context menu");
-                _notifyIcon.BalloonTipIcon = ToolTipIcon.Info;
-                _notifyIcon.ShowBalloonTip(0);
-                _isFirstRun = false;
+                _isStartupChecking = true;
+                updateChecker.CheckUpdate(config, 3000);
             }
         }
 
+        private void ShowFirstTimeBalloon()
+        {
+            _notifyIcon.BalloonTipTitle = I18N.GetString("Shadowsocks is here");
+            _notifyIcon.BalloonTipText = I18N.GetString("You can turn on/off Shadowsocks in the context menu");
+            _notifyIcon.BalloonTipIcon = ToolTipIcon.Info;
+            _notifyIcon.ShowBalloonTip(0);
+        }
+
         private void AboutItem_Click(object sender, EventArgs e)
         {
             Process.Start("https://github.com/shadowsocks/shadowsocks-windows");
diff --git a/shadowsocks-csharp/shadowsocks-csharp.csproj b/shadowsocks-csharp/shadowsocks-csharp.csproj
index 2f43d366..008134ae 100644
--- a/shadowsocks-csharp/shadowsocks-csharp.csproj
+++ b/shadowsocks-csharp/shadowsocks-csharp.csproj
@@ -60,7 +60,6 @@
     <CodeAnalysisRuleSet>ManagedMinimumRules.ruleset</CodeAnalysisRuleSet>
     <Prefer32Bit>false</Prefer32Bit>
     <DebugSymbols>true</DebugSymbols>
-    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
   </PropertyGroup>
   <PropertyGroup>
     <ApplicationManifest>app.manifest</ApplicationManifest>
@@ -347,25 +346,25 @@
       <Using xmlns="http://schemas.microsoft.com/developer/msbuild/2003" Namespace="System" />
       <Using xmlns="http://schemas.microsoft.com/developer/msbuild/2003" Namespace="System.IO" />
       <Using xmlns="http://schemas.microsoft.com/developer/msbuild/2003" Namespace="System.Xml.Linq" />
-      <Code xmlns="http://schemas.microsoft.com/developer/msbuild/2003" Type="Fragment" Language="cs"><![CDATA[
-var config = XElement.Load(Config.ItemSpec).Elements("Costura").FirstOrDefault();
-
-if (config == null) return true;
-
-var excludedAssemblies = new List<string>();
-var attribute = config.Attribute("ExcludeAssemblies");
-if (attribute != null)
-    foreach (var item in attribute.Value.Split('|').Select(x => x.Trim()).Where(x => x != string.Empty))
-        excludedAssemblies.Add(item);
-var element = config.Element("ExcludeAssemblies");
-if (element != null)
-    foreach (var item in element.Value.Split(new[] { "\r\n", "\n" }, StringSplitOptions.RemoveEmptyEntries).Select(x => x.Trim()).Where(x => x != string.Empty))
-        excludedAssemblies.Add(item);
-
-var filesToCleanup = Files.Select(f => f.ItemSpec).Where(f => !excludedAssemblies.Contains(Path.GetFileNameWithoutExtension(f), StringComparer.InvariantCultureIgnoreCase));
-
-foreach (var item in filesToCleanup)
-  File.Delete(item);
+      <Code xmlns="http://schemas.microsoft.com/developer/msbuild/2003" Type="Fragment" Language="cs"><![CDATA[
+var config = XElement.Load(Config.ItemSpec).Elements("Costura").FirstOrDefault();
+
+if (config == null) return true;
+
+var excludedAssemblies = new List<string>();
+var attribute = config.Attribute("ExcludeAssemblies");
+if (attribute != null)
+    foreach (var item in attribute.Value.Split('|').Select(x => x.Trim()).Where(x => x != string.Empty))
+        excludedAssemblies.Add(item);
+var element = config.Element("ExcludeAssemblies");
+if (element != null)
+    foreach (var item in element.Value.Split(new[] { "\r\n", "\n" }, StringSplitOptions.RemoveEmptyEntries).Select(x => x.Trim()).Where(x => x != string.Empty))
+        excludedAssemblies.Add(item);
+
+var filesToCleanup = Files.Select(f => f.ItemSpec).Where(f => !excludedAssemblies.Contains(Path.GetFileNameWithoutExtension(f), StringComparer.InvariantCultureIgnoreCase));
+
+foreach (var item in filesToCleanup)
+  File.Delete(item);
 ]]></Code>
     </Task>
   </UsingTask>
diff --git a/test/test.csproj b/test/test.csproj
index e441b8c2..777a10b8 100755
--- a/test/test.csproj
+++ b/test/test.csproj
@@ -23,10 +23,13 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x86'">
     <OutputPath>bin\x86\Debug\</OutputPath>
     <PlatformTarget>x86</PlatformTarget>
+    <DefineConstants>TRACE;DEBUG</DefineConstants>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x86'">
     <OutputPath>bin\x86\Release\</OutputPath>
     <PlatformTarget>x86</PlatformTarget>
+    <Optimize>true</Optimize>
+    <DefineConstants>TRACE</DefineConstants>
   </PropertyGroup>
   <PropertyGroup>
     <StartupObject />