diff --git a/SteamWareLib/user_std.cs b/SteamWareLib/user_std.cs
index a09fd47..90baea4 100644
--- a/SteamWareLib/user_std.cs
+++ b/SteamWareLib/user_std.cs
@@ -934,13 +934,16 @@ namespace SteamWare
       bool answ = false;
       // tolgo (se ci fosse) .aspx finale...
       pagina = pagina.Replace(".aspx", "");
-      try
+      if (permessi != null)
       {
-        System.Data.DataRow[] righe = permessi.Select(string.Format("URL = '{0}.aspx' OR URL = '{0}'", pagina));
-        answ = (righe.Length >= 1);
+        try
+        {
+          System.Data.DataRow[] righe = permessi.Select(string.Format("URL = '{0}.aspx' OR URL = '{0}'", pagina));
+          answ = (righe.Length >= 1);
+        }
+        catch
+        { }
       }
-      catch
-      { }
       return answ;
     }
     /// <summary>