That'a fine. I think I may have cracked it. I totally removed AVG free using AVGs removal software, and did a new D/L and install. Worked fine. I then uninstalled the Nexus Mod Manager that was also giving problems, re installed and this time no errors! I will keep an eye on this and then maybe we can close this one. It has been very helpful having someone to think this through with, many thanks. Rob