asp.net - Tab item appears unclear in ajax:TabPanel -

asp.net - Tab item appears unclear in ajax:TabPanel -

i using <ajax:tabcontainer> & <ajax:tabpanel> how cannot see tabs clearly. half of tab.

here code :

<%@ register assembly="ajaxcontroltoolkit" namespace="ajaxcontroltoolkit" tagprefix="ajax" %> <ajax:toolkitscriptmanager id="scriptmanager1" runat="server"/> <ajax:tabcontainer id="tabcontainer1" runat="server" activetabindex="1"> <ajax:tabpanel runat="server" id="tbpnluser"> <headertemplate> home </headertemplate> <contenttemplate> <table> <tr> <b>registration form</b> </tr> <tr> <td> username: </td> <td> <asp:textbox id="txtuser" runat="server"></asp:textbox> </td> </tr> <tr> <td> password: </td> <td> <asp:textbox id="txtpwd" runat="server" textmode="password"> </asp:textbox> </td> </tr> </table> </contenttemplate> </ajax:tabpanel> </ajax:tabcontainer>

output:

http://imgur.com/171lwle

i have changed ajax dlls not getting anything.... has idea??? in advance.

asp.net ajax