Post Categories cache not clearing on post publish/update

Hey guys,

I have a problem that I can’t figure out how to resolve.

We’re using Post Categories in a variety of locations throughout our site. They are used as main pages, in many cases.

The problem is that when we publish/update a post, the Category page cache is not cleared. Visitors don’t see new posts when they visit the site. Garbage collection doesn’t seem to be clearing the cache either. I have 3 day old posts that aren’t appearing.

Thanks for your help.

-Jacob

http://wordpress.org/extend/plugins/w3-total-cache/