diff --git a/app/Display/ScreenControl.cs b/app/Display/ScreenControl.cs
index 3bc98323..7180bcdc 100644
--- a/app/Display/ScreenControl.cs
+++ b/app/Display/ScreenControl.cs
@@ -24,8 +24,8 @@ namespace GHelper.Display
 
         public void SetScreen(int frequency = -1, int overdrive = -1, int miniled = -1)
         {
-
             var laptopScreen = ScreenNative.FindLaptopScreen(true);
+
             if (laptopScreen is null) return;
 
             if (ScreenNative.GetRefreshRate(laptopScreen) < 0) return;
@@ -66,7 +66,6 @@ namespace GHelper.Display
 
         public void InitScreen()
         {
-
             var laptopScreen = ScreenNative.FindLaptopScreen();
 
             int frequency = ScreenNative.GetRefreshRate(laptopScreen);
diff --git a/app/Display/ScreenNative.cs b/app/Display/ScreenNative.cs
index c0da638c..70af406f 100644
--- a/app/Display/ScreenNative.cs
+++ b/app/Display/ScreenNative.cs
@@ -118,14 +118,34 @@ namespace GHelper.Display
         public const int ENUM_CURRENT_SETTINGS = -1;
         public const string defaultDevice = @"\\.\DISPLAY1";
 
+        static bool? _ultimate = null;
+
+        static bool isUltimate
+        {
+            get
+            {
+                if (_ultimate is null) _ultimate = (Program.acpi.DeviceGet(AsusACPI.GPUMux) == 0);
+                return (bool)_ultimate;
+            }
+        }
+
         public static string? FindLaptopScreen(bool log = false)
         {
             string? laptopScreen = null;
+            var screens = Screen.AllScreens;
+
+            if (!isUltimate)
+            {
+                foreach (var screen in screens )
+                {
+                    if (log) Logger.WriteLine(screen.DeviceName);
+                    if (screen.DeviceName == defaultDevice) return defaultDevice;
+                }
+            }
 
             try
             {
                 var devices = GetAllDevices().ToArray();
-                var screens = Screen.AllScreens;
 
                 int count = 0, displayNum = -1;
 
@@ -147,11 +167,7 @@ namespace GHelper.Display
                 count = 0;
                 foreach (var screen in screens)
                 {
-                    if (count == displayNum)
-                    {
-                        laptopScreen = screen.DeviceName;
-                    }
-                    //if (log) Logger.WriteLine(screen.DeviceName);
+                    if (count == displayNum) laptopScreen = screen.DeviceName;
                     count++;
                 }
 
diff --git a/app/GHelper.csproj b/app/GHelper.csproj
index 91f89fa3..ba1ca70f 100644
--- a/app/GHelper.csproj
+++ b/app/GHelper.csproj
@@ -16,7 +16,7 @@
     <PlatformTarget>AnyCPU</PlatformTarget>
     <ProduceReferenceAssembly>False</ProduceReferenceAssembly>
     <AllowUnsafeBlocks>True</AllowUnsafeBlocks>
-    <AssemblyVersion>0.97</AssemblyVersion>
+    <AssemblyVersion>0.98</AssemblyVersion>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
diff --git a/app/Gpu/GPUModeControl.cs b/app/Gpu/GPUModeControl.cs
index 7f548d4c..e437066b 100644
--- a/app/Gpu/GPUModeControl.cs
+++ b/app/Gpu/GPUModeControl.cs
@@ -36,7 +36,7 @@ namespace GHelper.Gpu
                 else
                     GpuMode = AsusACPI.GPUModeStandard;
 
-                // Ultimate mode not suported
+                // Ultimate mode not supported
                 if (mux != 1) settings.HideUltimateMode();
                 // GPU mode not supported
                 if (eco < 0 && mux < 0) settings.HideGPUModes();