Aggiunto locking al database per evitare scritture contemporanee.

diff --git a/GlobalConfig.cs b/GlobalConfig.cs
index 79088b1..b6566c4 100644
--- a/GlobalConfig.cs
+++ b/GlobalConfig.cs
@@ -40,18 +40,23 @@ namespace Dizzy

 		public void InsertValue(string field, string val)
 		{
-			SQLiteCommand sqlCmd;
+			lock (this)
+			{

-			this.conn.Open ();
-			sqlCmd = this.conn.CreateCommand ();
+				SQLiteCommand sqlCmd;

-			sqlCmd.CommandText = "INSERT OR REPLACE INTO config VALUES ('" + field + "', '" + val + "');";
-			sqlCmd.ExecuteNonQuery ();
-			this.conn.Close ();
+				this.conn.Open ();
+				sqlCmd = this.conn.CreateCommand ();
+
+				sqlCmd.CommandText = "INSERT OR REPLACE INTO config VALUES ('" + field + "', '" + val + "');";
+				sqlCmd.ExecuteNonQuery ();
+				this.conn.Close ();
+			}
 		}

 		protected void Init ()
 		{
+
 			SQLiteCommand sqlCmd;
 			this.conn.Open ();
 			sqlCmd = this.conn.CreateCommand ();
@@ -66,25 +71,29 @@ namespace Dizzy
 			}
 			else
 				this.conn.Close ();
-		}
+
+	}

 		protected void InitialSetup ()
 		{
-			// Dobbiamo creare la struttura del database
-			SQLiteCommand sqlCmd;
-			this.conn.Open ();
-
-			// Tabelle delle configurazioni
-			sqlCmd = this.conn.CreateCommand ();
-			sqlCmd.CommandText = "CREATE TABLE config (field TEXT, value TEXT);";
-			sqlCmd.ExecuteNonQuery ();
-
-			// Tabella della lista
-			sqlCmd = this.conn.CreateCommand ();
-			sqlCmd.CommandText = "CREATE TABLE list (path TEXT, user TEXT);";
-			sqlCmd.ExecuteNonQuery ();
-
-			this.conn.Close ();
+			lock (this)
+			{
+				// Dobbiamo creare la struttura del database
+				SQLiteCommand sqlCmd;
+				this.conn.Open ();
+
+				// Tabelle delle configurazioni
+				sqlCmd = this.conn.CreateCommand ();
+				sqlCmd.CommandText = "CREATE TABLE config (field TEXT, value TEXT);";
+				sqlCmd.ExecuteNonQuery ();
+
+				// Tabella della lista
+				sqlCmd = this.conn.CreateCommand ();
+				sqlCmd.CommandText = "CREATE TABLE list (path TEXT, user TEXT);";
+				sqlCmd.ExecuteNonQuery ();
+
+				this.conn.Close ();
+			}
 		}

 		protected string DataBaseName ()