I've installed 'wiki' on top of the Headway theme, and there are several things not working. I've messed with the settings in the visual editor as far as I know how & fixed some elements, but not all.
These are the things I still can't fix:
Clicking on a tag in tag cloud gives a whoops page.
comment submit takes you to a ‘whoops’ page.
breadcrumbs top level – no page - I posted that already.
Supposed to be able to control settings from the front end – comments ok, who can access, parent, categories – Headway must be interfering somehow.