diff --git a/src/.vs/WHOis/v14/.suo b/src/.vs/WHOis/v14/.suo
index edb00f1..4f808a9 100644
Binary files a/src/.vs/WHOis/v14/.suo and b/src/.vs/WHOis/v14/.suo differ
diff --git a/src/WHOis/MainForm.cs b/src/WHOis/MainForm.cs
index 296a079..09f9ccc 100644
--- a/src/WHOis/MainForm.cs
+++ b/src/WHOis/MainForm.cs
@@ -289,8 +289,11 @@ private async void dgvResult_CellDoubleClick(object sender, DataGridViewCellEven
         {
             try
             {
+                if (e.RowIndex < 0) return;
+
                 InvokeIfRequire(() => Cursor = Cursors.WaitCursor);
                 DataGridViewCell cell = dgvResult.Rows[e.RowIndex].Cells[e.ColumnIndex];
+                
 
                 if (!string.IsNullOrEmpty(cell.ErrorText))
                 {