Bob,
Have had some more feedback from other users of the dreaded CD and 80% have had significant but oddly varied problems. Personally I can't believe that any company would release something so awful and its more than a little embarrasing! However that aside, no feedback on the issue yet mate. Will keep you all posted!
If I don't hear anything by mid next week, I'm going to escalate it to director level. (Yes, they want us to escalate issues to them, they encourage it even!)