If I recall claarky hasn't recovered? I had the same surge of confidence at one time when I thought it was over lapping content. That because all the other Amit signals didn't apply to me. I scoured through my site with the find function in Dreamweaver looking for multiple instances of major keywords or phrases and did discover a dozen pages that could have been problematic. No effect.
I've thought off and on that it's probably a Google problem. My site deals primarily with the installation of widgets. That in itself is overlapping, but no way can I avoid it. Why? Because there are many types widgets and the installation methods vary.
Thanks for the insight claarky. It proved to be a glimmer of hope, but I think this whole Panda thing is beyond my control unless I condense the heck out of the site. However that would make it extremely difficult for anyone looking for information and it would look downright fugly.