I have installed Product Design Suite 2014 on 5 computers at the company where I work at. For some reason, the Vault tab has disappeared from Inventor 2014 for 2 of the users. When I click on Add-In manager nothing comes up. We are using the Product Design Suite 2014 and Vault Pro 2014. As I said, it is only 2 out of 5 users who are having this issue. Does anyone have any ideal what the issue could be? Any help would be greatly appreciated.