MustardDan - 9:20 am on Apr 27, 2012 (gmt 0)
Hi guys and thank you for your input. Yes it is a windows server and I did have the same thought as you about page authority being split instead of it all being pushed to the correct page version. As I speak the onsite link structure is being ammended to make sure it is all lower case versions being displayed. I have a strong feeling that this is where the issue came from and that it isn't from an external source. I will keep you updated on any effects this has.