Cascading DropDown(AJAX with .NET tech)

[Fuhrer]

Hi all,
i have a problem implementing Cascading DropDown,in my webpage.
i'm creating it in"test.aspx" :
<cc1:CascadingD ropDown .......></cc1:CascadingDr opDown>

in my "test.aspx. cs" page:
i'm trying to fill it with infos.i'm getting these infos by connecting to SQL Server 2005 database,but it wont work,instead i have a 403 error.
if any one have a code or an answer please let me know

Thank u

[kenobewan]

Test your connection to sql server.