Draw image from the web(succeed but the question mark appears)

Hi all, here is simple script from the refference:

using UnityEngine;
using System.Collections;

public class Test : MonoBehaviour {
	

	public Texture2D LoadTexture;
	public string url = "https://dl.dropboxusercontent.com/u/169229534/images.jpg";
	IEnumerator Start() {
        WWW www = new WWW(url);
        yield return www;
		if (www.isDone)
		{
       		LoadTexture = www.texture;
		}
    }
	 
	void OnGUI()
	{
		if (LoadTexture!=null)
		GUI.DrawTexture(new Rect (20,20, LoadTexture.width, LoadTexture.height), LoadTexture);
	}
}

Here is the result:
1420523--74762--$dfuq.JPG
So, how can I remove dat question mark???

I assume you have the script attached multiple times, with one of them not having a valid URL.

–Eric

Oh, thats can be the reason, will check it asap, thx for the reply.