WebBrowser Control & Navigate help

I can load a link into the webBrowser1.Navigate manual by adding a button. But, I can't get it to work while processing from the list box in a loop. Is there a response or wait function that's suppose to be added? Right now all I hear is clicking sounds and nothing happening in the browser control window.

private void start_btn_Click(object sender, EventArgs e)
{
    if (listId.Items.Count != 0 && listCell.Items.Count != 0)
    {
        for (int a = 0; a < listId.Items.Count; a++)
        {
            for (int b = 0; b < listCell.Items.Count; b++)
            {
                MakeReq(txtWebUpdate.Text + listId.Items[a].ToString() + 
                        "&admire=1", listCell.Items[b].ToString());
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        }
    }
}

void MakeReq(string Url, string Cell)
{

    try
    {
        txtSetUpdate.Text = (Cell);
        webBrowser1.Navigate(new Uri(Url));
    }
    catch (System.UriFormatException)
    {
        return;
    }

}

this is the code i ended up using.

   void WaitBrowserLoading()
    {
        while (webBrowser1.IsBusy)
            Application.DoEvents();
        for (int i = 0; i < 500; i++)
            if (webBrowser1.ReadyState != WebBrowserReadyState.Complete)
            {
                Application.DoEvents();
                System.Threading.Thread.Sleep(10);
            }
            else
                break;
        Application.DoEvents();
    }

What is your aim?

Here you just call Navigate which just initiates a navigation. It doesn't care what happens after it starts the process. So in your code the loop initiates several Navigates in a row, each of which cancel the previous on if it has completed yet. Therefore the only one you will actual see complete will be the last one in your list.