Ok ... It was the clip. This was passed along to me through the agencies creative staff and was converted from the original CAD data. I went back and checked and, as you suggested, the clip was jacked WAY up. The depth was set to 10000. I knocked it down to 100 and everything fell into place. Not sure why it was set so high but anyway its fine now. Many thanks. Its a one more thing I'll be checking as these files come across.