IIS 7.0 (Shared Hosting) ASP.NET 2.0 Integrated Pipeline mode MVC 1.0

I get a 404 on every url except /default.aspx.

I have this in my web.config:

<system.webServer>
  <defaultDocument enabled="true">
   <files>
    <clear />
    <add value="Default.aspx" />
   </files>
  </defaultDocument>
  <directoryBrowse enabled="false" />
  <validation validateIntegratedModeConfiguration="false" />
  <handlers>
   <add name="ScriptHandlerFactory_asmx" verb="*" path="*.asmx" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
   <add name="ScriptHandlerFactory_axd" verb="*" path="*_AppService.axd"  type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
   <add name="ScriptResourceHandler" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
   <add name="MvcHttpHandler" verb="*" path="*.mvc" type="System.Web.Mvc.MvcHttpHandler, System.Web.Mvc, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
   <add name="ErrorLogPageFactory" verb="POST,GET,HEAD" path="elmah.axd" type="Elmah.ErrorLogPageFactory, Elmah" />
  </handlers>
  <modules runAllManagedModulesForAllRequests="true">
   <remove name="ScriptModule" />
   <remove name="UrlRoutingModule" />
   <remove name="ErrorLog" />
   <remove name="UnitOfWorkModule" />
   <add name="ScriptModule" preCondition="managedHandler" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
   <add name="UrlRoutingModule" type="System.Web.Routing.UrlRoutingModule, System.Web.Routing, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
   <add name="UnitOfWorkModule" type="MusicCompany.Infrastructure.UnitOfWorkModule, MusicCompany.Infrastructure" />
   <add name="ErrorLog" type="Elmah.ErrorLogModule, Elmah" />
  </modules>

The only unusual thing to me is the defaultDocument. It seems I need it because of the way the host (shared hosting) is set up (?)

Any clues?

Thanks