Checked Out Files - Cannot Undo Checkout

I have a couple of users that are having issues with their file vault. They have a number of files checked out and are

unable to check them back in. As an Admin I have tried checking them in myself and using the "undo checkout" command

but was unsuccessful.

I have tried deleting the vault view and recreating it, also did not work.

Similarly I have a user that was issued a  new machine while I was on vacation. His old machine was wiped by our IT department

while he still had files checked out in the vault. I have the same problem in that I am unable to check in or undo checkout on the files that he had

checked out in the vault.

Any help would be greatly appreciated.

Matt

SolidworksSolidworks Pdm enterprise Pdm