generated scaffold and layouts?

Hey all,

I've generated a bit of scaffolding and made no modifications
whatsover. When I go to view the list/show/edit... whatever it seems
that the layouts are not being rendered? When I view the page source
there is no head, body, title etc... tags although the layout file is
clearly there and the name matches that of the controller?

Any thoughts on why this is?

Thanks in advance!
Tim