changes to tpl files in subtheme work EXCEPT page.tpl.php

Hi Everybody,

I've copied and pasted all of the /zen tpl files into my zen/subtheme folder and followed all the directions in other posts about clearing the cache etc.

My subtheme is up and running fine, but it only reads from the page.tpl file in /zen. However, it DOES read from all other template files in my /zen/subtheme directory, such as node.tpl.php.

Any idea why it won't read from page.tpl in /zen/subtheme? For now I'm just modifying the page.tpl file in /zen as a workaround.

Thanks for any help!