Check Box control is not visible. How to make it visible

[qqquaker]

I can't see checkboxes and radiobuttons in my web page. I do not understand where I make mistake. In my first template there is no problem. However after changing template there are problems with checkboxes and radiobuttons.Here is the code :\[code\]<div class="grid_12"> <div class="box round first fullpage" style="height: 330px"> <h2>E-mail Ayarlar?</h2> <div class="block"> <asp:button id="btn_mail_ekle" runat="server" text="Ekle" cssclass="btn btn-small" onclick="btn_mail_ekle_Click" /> <div class="gvclass"> <p> <span> <asp:gridview runat="server" id="GridView4" cellpadding="4" width="100%" rowstyle-wrap="True" rowstyle-height="30px" pagesize="20" emptydatatext="G?r