I've just noticed someone has come to our blog after searching for the terms in the title of this page. It reminded me of a frustrating hour or so when I first started using rails where the RHTML page I was writing was doing (or not doing) just that. Just in case anyone is having the same newbie problem I'll hold my hand up say it was this:

make sure any embeded Rails code is surrounded by these delimeters:

 <%=      %> #(note the equals)

and not these:

<% %>

Hope this helps.