a guess
are the people creating these CD's using different software to do the job on their new PCs? What was the old way and what is the new way they are using?
Usually with MS stuff when newer software will create stuff that is incompatible with older computers etc there is an option someplace to do things in compatibility mode. So I would ask the people making the CDs to check what options they may be able to enable and disable before creating the CDs for you...
G