C# and PictureBox not loading

Hi,

I am developing a program which allows me to view a camera.
The images are stored on a hard drive on a computer and i've gotten through the login etc, but when I try and display the picture, it just doesn't show.

Here is what I am doing to show the picture:

Code:

---

MainScreen_One_Pic.ImageLocation = "http://" + port1_site_ip + ":" + port1_site_port + "/ivop.get?action=live&piccnt=1&THREAD_ID=" + port1_threadid;

---

It roughly translates to:

Code:

---

MainScreen_One_Pic.ImageLocation = "http://1.2.3.4:987/ivop.get?action=live&piccnt=1&THREAD_ID=bb234897rh2y3hvr237r2h;

---

If I put the URL that is generated in a web browser, the image displays perfectly.
Am I doing something very wrong here?

Thanks.

Are you sure that this URL actually returns a "picture" or does it return an html page that has a picture on it?

It does return a picture.
Content type is image/jpeg etc,

I've tried it with a static image from google images, and it still doesn't work.
I did have it working once, but then will not work again.