Dear Sir, We are the users of cadian from past one and half year. When we intimated you about the problem of drawing automatically closing, we have received the patch of cadian 2008i patch 15. Since all our clients are not having latest versions of autocad or cadian we are downgrading the drawings to lower versions of autocad. The clients were unable to open the drawings. I am facing the problem of incompatability with autocad when downgraded to lower versions. Please provide me the solution asap Regards Srikanth