diff --git a/FanCtrl/Data/OSD/OSDItem.cs b/FanCtrl/Data/OSD/OSDItem.cs
index 67d2c0c..c3499ef 100644
--- a/FanCtrl/Data/OSD/OSDItem.cs
+++ b/FanCtrl/Data/OSD/OSDItem.cs
@@ -138,7 +138,7 @@ public string getUnitString()
             switch (UnitType)
             {
                 case OSDUnitType.Temperature:
-                    return (OptionManager.getInstance().IsFahrenheit == false) ? " *C" : " *F";
+                    return (OptionManager.getInstance().IsFahrenheit == false) ? " 캜" : " 캟";
 
                 case OSDUnitType.RPM:
                     return " RPM";
diff --git a/MainForm.cs b/MainForm.cs
index c94c3a5..837b3aa 100644
--- a/MainForm.cs
+++ b/MainForm.cs
@@ -635,6 +635,10 @@ private void onDonatePictureBoxClick(object sender, MouseEventArgs e)
         private void onOSDButtonClick(object sender, EventArgs e)
         {
             var form = new OSDForm();
+            form.onApplyCallback += (sender2, e2) =>
+            {
+                mEnableOSDToolStripMenuItem.Checked = OSDManager.getInstance().IsEnable;
+            };
             form.ShowDialog();
             form.Dispose();
         }
diff --git a/OSDForm.cs b/OSDForm.cs
index f5d9450..5678904 100644
--- a/OSDForm.cs
+++ b/OSDForm.cs
@@ -19,6 +19,8 @@ public partial class OSDForm : Form
         private ListViewItem mGroupEditItem = null;
         private ListViewItem.ListViewSubItem mGroupEditSubItem = null;
 
+        public event EventHandler onApplyCallback;
+
         public OSDForm()
         {
             InitializeComponent();
@@ -488,6 +490,7 @@ private void onApplyButtonClick(object sender, EventArgs e)
             OSDManager.getInstance().IsEnable = mEnableCheckBox.Checked;
             OSDManager.getInstance().setGroupList(mGroupList);
             OSDManager.getInstance().write();
+            onApplyCallback(sender, e);
         }
 
         private void onOKButtonClick(object sender, EventArgs e)
diff --git a/Portable/FanCtrl_v1.1.6.zip b/Portable/FanCtrl_v1.1.6.zip
index 2b8349b..21fff03 100644
Binary files a/Portable/FanCtrl_v1.1.6.zip and b/Portable/FanCtrl_v1.1.6.zip differ