ASP.NET Web Site Administration Tool

[Carter]

I'm developing a Web site with VS 2005 on a machine under Windows
Vista Home Premium. I also have SQL Server 2005 Standard Edition
installed on the same machine, using Windows authentication.

When I try to access the Security tab in the Web Site Administration
Tool, it fails with a message "Unable to connect to SQL Server
database"

The database aspnetdb is attached, and my user login, which is in a
sysadmin server role, is mapped to that database, as well as the
application database.

Database roles selected are: aspnet_Roles_Ba sicAccess,
aspnet_Roles_Fu llAccess, and aspnet_Roles_Re portingAccess,

The application's web.config file has the following code:

<connectionStri ngs>
<add name="appname" connectionStrin g="Server=serve rName;Integrate d
Security=True;D atabase=appName " providerName="S ystem.Data.SqlC lient"/>
<add name="SqlRoleMa nagerConnection " connectionStrin g="Data
Source=serverNa me;Integrated Security=True;D atabase=aspnetd b"
providerName="S ystem.Data.SqlC lient" />
</connectionStrin gs>

and

<roleManager enabled="true" defaultProvider ="SqlRoleManage r">
<providers>
<add name="SqlRoleMa nager"
type="System.We b.Security.SqlR oleProvider"
connectionStrin gName="SqlRoleM anagerConnectio n"
applicationName ="appName" />
</providers>
</roleManager>

Any suggestions would be greatly appreciated.