Cursor - Problem with GUI texture rotation

Hello,

Script idea is to use the mouse cursor to show the direction the player is facing.
What the script is doing is converting mouse position to get fAngle (0° to 360°). Then, fAngle is used to rotate mouse cursor (mAngle).
When i look at debug log, fAngle and mAngle are correct, but mouse cursor rotation is weird.
What did i dit wrong?

Thanks in advance!

using UnityEngine;
using System.Collections;

Code (csharp):

1. public class MouseCursorAngle : MonoBehaviour {
2.  
3.     public GameObject goPlayer;
4.  
5.     // Cursor texture
6.     public Texture2D textCursor;
7.     // Cursor size x
8.     public int cursorSizeX = 16;
9.     // Cursor size y
10.     public int cursorSizeY = 16;
11.  
12.     private float angle= 0.0f;
13.  
14.  
15.     void  Start (){
16.         //Hide Mouse Cursor
17.         Screen.showCursor = false;
18.         }
19.  
20.  
21.     void Update() {
22.         GetAngle ();
23.     }
24.  
25.  
26.     public void GetAngle(){
27.  
28.         Vector3 v3Pos;
29.         float fAngle;
30.  
31.         //Convert the player to Screen coordinates
32.         v3Pos = Camera.main.WorldToScreenPoint(goPlayer.transform.position);
33.         v3Pos = Input.mousePosition - v3Pos;
34.         fAngle = Mathf.Atan2 (v3Pos.y, v3Pos.x)* Mathf.Rad2Deg;
35.         if (fAngle < 0.0f) fAngle += 360.0f;
36.         Debug.Log ("fAngle) "+fAngle);
37.         angle = fAngle;
38.         Debug.Log ("mAngle) "+angle);
39.     }
40.  
41.  
42.     void OnGUI()
43.     {
44.         Matrix4x4 matx= GUI.matrix;
45.         float x= Event.current.mousePosition.x-cursorSizeX/2.0f;
46.         float y= Event.current.mousePosition.y-cursorSizeY/2.0f;
47.         Vector2 pivot= new Vector2(x + cursorSizeX / 2.0f,y + cursorSizeY / 2.0f);
48.         GUIUtility.RotateAroundPivot(angle, pivot);
49.         GUI.DrawTexture ( new Rect(x, y, cursorSizeX, cursorSizeY), textCursor);
50.         GUI.matrix = matx;
51.     }
52. }