Jez123 - 12:11 pm on Sep 3, 2012 (gmt 0)
Have you seen any significant changes in Google rankings and traffic since your recent site-structure alterations? For example, the Google algorithm might suspect that you made the alterations for SEO purposes, and drop your rankings and traffic, at least temporariily, to test for possible reactions on your part that would confirm the suspicion. It could even become a "cat and mouse waiting game" between you and the algorithm, to see whether it can trap you or you can trick it.
This is what I am seeing on my site I think. Do I just leave all alone now I have made the changes?