Multiple Update panel

Hi,

I have 2 UpdatePanel on my ASP.NET page.

Both are working great, my problem is that as long as the first updatepanel method is not over, my second update panel doesnt fire.

So, that mean that when the user validate his email address, he cannot go to the next step because the 2nd update panel will not be updated until the first one has finihed.

Thank you for your help 

//FIRST ONE this is an email validator<asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional"><Triggers><asp:AsyncPostBackTrigger ControlID="email_apply" EventName="TextChanged" /></Triggers><ContentTemplate><asp:Image ID="img_email" runat="server" /></ContentTemplate></asp:UpdatePanel><asp:TextBox ID="email_apply" runat="server" CssClass="span12" OnTextChanged="email_apply_TextChanged"
                                AutoPostBack="true"></asp:TextBox>

//Second one


    <asp:DropDownList ID="country" runat="server" CssClass="span12" AutoPostBack="True"
                                OnSelectedIndexChanged="country_SelectedIndexChanged"></asp:DropDownList><asp:UpdatePanel ID="UpdatePanel3" runat="server" UpdateMode="Conditional"><Triggers><asp:AsyncPostBackTrigger ControlID="country" EventName="SelectedIndexChanged" /></Triggers><ContentTemplate><asp:TextBox ID="address1" runat="server" CssClass="span12" Width="78%"></asp:TextBox></div></ContentTemplate></asp:UpdatePanel>