This just happened again to the same user. I have confirmed that they have FULL CONTROL of the file they are trying to edit.. PDF file within a network folder that only they have access to. Keep getting the message saying no permissions or another person has the file opened. I have also attached the OPEN MODE listing from Windows 2003 server using computer management:
Adam Leinss
Just for the sake of clarity: you should accept john's answer regarding read-only folders and then open a new question regarding not being able to open a PDF file. I don't see what the one issue has to do with the other.