diff --git a/GUI/MainForm.cs b/GUI/MainForm.cs
index b0bb3aa..4aa19eb 100644
--- a/GUI/MainForm.cs
+++ b/GUI/MainForm.cs
@@ -91,7 +91,7 @@ namespace OpenHardwareMonitor.GUI {
       this.Font = SystemFonts.MessageBoxFont;
       treeView.Font = SystemFonts.MessageBoxFont;
       plotPanel.Font = SystemFonts.MessageBoxFont;
-      treeView.RowHeight = treeView.Font.Height;      
+      treeView.RowHeight = treeView.Font.Height + 1;      
       
       nodeCheckBox.IsVisibleValueNeeded += nodeCheckBox_IsVisibleValueNeeded;
       nodeCheckBox.CheckStateChanged += UpdatePlotSelection;
diff --git a/Program.cs b/Program.cs
index a928688..2378903 100644
--- a/Program.cs
+++ b/Program.cs
@@ -76,7 +76,7 @@ namespace OpenHardwareMonitor {
 
       if (!File.Exists(path + fileName)) {
         MessageBox.Show("The following file could not be found: " + fileName + 
-          "\nPlease extract all files from the zip archive.", "Error",
+          "\nPlease extract all files from the archive.", "Error",
            MessageBoxButtons.OK, MessageBoxIcon.Error);
         return false;
       }
@@ -86,7 +86,8 @@ namespace OpenHardwareMonitor {
     private static bool AllRequiredFilesAvailable() {
       if (!IsFileAvailable("Aga.Controls.dll"))
         return false;
-
+      if (!IsFileAvailable("OpenHardwareMonitorLib.dll"))
+        return false;
       return true;
     }