Ci piace che le colonne si possano ridimensionare.

diff --git a/Dizzy/FileTreeView.cs b/Dizzy/FileTreeView.cs
index b968efb..fd40fc1 100644
--- a/Dizzy/FileTreeView.cs
+++ b/Dizzy/FileTreeView.cs
@@ -47,11 +47,13 @@ namespace Dizzy
 		{
 			// Filename
 			Gtk.CellRendererText filenameRenderer = new Gtk.CellRendererText ();
+			filenameColumn.Resizable = true;
 			filenameColumn.PackStart (filenameRenderer, true);
 			filenameColumn.AddAttribute (filenameRenderer, "text", 0);

 			// Utente
 			Gtk.CellRendererText userRenderer = new Gtk.CellRendererText ();
+			userColumn.Resizable = true;
 			userColumn.PackStart (userRenderer, true);
 			userColumn.AddAttribute (userRenderer, "text", 1);
 		}
diff --git a/Dizzy/TaskTreeView.cs b/Dizzy/TaskTreeView.cs
index cba9ab1..6e0b471 100644
--- a/Dizzy/TaskTreeView.cs
+++ b/Dizzy/TaskTreeView.cs
@@ -20,9 +20,11 @@ namespace Dizzy
 			this.tree = tree;

 			fileColumn = new TreeViewColumn ();
+			fileColumn.Resizable = true;
 			fileColumn.Title = "File";

 			progressColumn = new TreeViewColumn ();
+			progressColumn.Resizable = true;
 			progressColumn.Title = "Avanzamento";

 			this.tree.AppendColumn (fileColumn);