[Lynne]

First, disable your plugins and see if you have the same problem.
Note: To temporarily disable the plugin system, edit config.php and add this line right under <?php

PHP Code:

define('DISABLE_HOOKS', true); 


If you do, then I'd try copying your style and then import it so only you can see. Go through and revert templates until you don't get the error any longer. Then, most likely, the last template that you reverted is the culprit. I don't know what else you can really do.