>Hi Craig,
>Thanks for your reply. I had looked at the Knowledgebase but must have searched using different criteria and did not find Q157636 which led to the solution to our problems.
>A screwed up vss5->vss6 upgrade on one workstation had resulted in that user exclusively checking out the PJM file from VSS. All other workstations had non-exclusive checkouts.
>If the PJM file is exclusively checked out to USER1 and USER2 tries to join the project you get the behaviour we were experiencing,
>
>Thanks,
>
>Andy

Glad I could help and that you solved your problem.