Robert_Charlton - 6:49 am on Jul 8, 2010 (gmt 0)
I think buckworks is onto something here, and the question deserves an answer....
How many navigation links does a spider now have to wade through before it would reach the unique core content of the page? How does that compare with the previous version?
Also... apart from positioning... has there been a change in the total number of nav links on the page, particularly on your home page?