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I'd have to see the site to answer that question, but when this happens it generally means that users did not think your site was the best result. As you hit page one Google gets more data, including impressions, clicks, click-thru-rate, bounces, query modifications... basically, they'll know if the searchers found what they were looking for or "liked" your site. Then again, it could be something else, but I'd have to see the site. Did you make any changes? Are your redirects still working?

no problem

Oh yes it does! Thanks for the ideas!!