I installed hyper cache recently, and the plugin is great for speed. But I noticed that it's working somewhat oddly in certain situations. Hyper cache, correctly, does not serve up cached pages when a user is logged in. The problem I'm having is that when a user logs out, and visits pages they had already visited while logged in, it's displaying local cached versions of those pages with the wp admin bar and all the other logged in specific content. Which means that what they're seeing is a local cached copy, rather than the cached version stored on the server.
How can I set things so that the hypercache overrides local caching?