Could you please repost your question, together with your worksheet, on the Mathcad Collaboratory (which is PTC maintained and run) http://collab.mathsoft.com/ . The Collaboratory is much more heavily used than this forum and you are more likely to get an answer. If you could post your worksheet in M11 format as well as whatever version format you use, that would be helpful, as many people have stuck to M11 and most Mathcad problems are version independent.