Thanks, John. I think the error message is the same as what was posted previously: "Could not lock file". Although I did not notice the title of the window (DataGetMDBSample). If we get another, I will capture it for you.
Our IT support helped again too. We cannot uninstall BitLocker as it is part of the enterprise Windows 7 that the university uses. It is disabled though. We also set the computer to decrypt the drive overnight. This should not matter because once the encryption is disabled, new files should not be encrypted, and even though we tried making new PFE data files, the error still occurred. Our PFE user directory was already accessible by all users but he made sure that all accounts on the machine had modify privileges just in case.
I also noticed that the error occurred more frequently as the session went on. I am doing an analysis with a dozen elements, so I wonder if the amount of information in the file/memory is creating more opportunity for the error to occur.
Thanks for the new PFE version. Let's hope that does the trick!