It looks like that the pjm file on the VSS side is reset to whoever updated it last. For example, I (programmer a) create a VFP project (project a) and add it to VSS. Another programmer (b) joins the project in his local directory. Programmer b adds a form to the project in the local directory, adds it to VSS, and does the "update Project List" function. Viewing the VSS pjm file finds the new form listed in it. Programmer b does a Update Project List. The project does not contain the added form and when the VSS pjm file is viewed it contains b's pjm file. The new form added by a is not there.

I have tried this with and without multiple checkout and it doesn't seem to matter.