GUIskin and c#, How?

Hi,

Im trying to get a GUIskin to work with this bit of code but it doesnt want to, The code:

 public class Menu : MonoBehaviour {
     
     float screenX = (Screen.width / 2) - 100;
     float screenY = (Screen.height / 2) - 100;
     
     public GUISkin MenuStyle;
     
     public bool exitButtonPress = false;
     public bool settingsButton = false;
     public bool settingsSoundButton = false;
     public bool settingsGraphicsButton = false;
     public bool windowBool = Screen.fullScreen;
     
     void OnGUI ()
     {
         GUI.skin = MenuStyle;
         GUI.Label(new Rect((screenX + 50),25,100,30),"Game Title");
         GUILayout.BeginArea(new Rect(25,25,400,400));
         GUILayout.Label("test");
         GUILayout.EndArea();

MenuStyle is the name of the Guiskin in Unity. But neither the GUI. or GUIlayout objects will get the style.

How is it done?

thanks.