I find that when I pack and go a parametric object whose dimensions are governed by equations residing in a linked text file, the linked list doesn't follow. For example I created a small coffe table called "mesita" with its parameters and equations and then packed it off to a clone called "mesota". By changing three dimension parameters, the thing reconfigures itself to a large dining-room table. But then so does the mesita. What is happening is that both are reading their parameters and equations from the same text file. The only workaround I have found so far, is to make the original textfile from "mesita" disappear, either by copying it out or renaming it, and forcing the system to ask me to look for it myself. Then I oblige by pointing out the "mesota" equations file and it links to that one and things go well from there. Is this an undocumented feature, or am I doing something wrong?