One of my users has been archiving mail to the same PST for years. Today, he got a message indicating that he has reached the maximum storage limit for the PST, and that he should upgrade the PST to the Office 2003 format. I'm not sure which version of office this PST was initially created in, but we're now running Office 2007. How do we go about converting this pST to the most current format? Thanks, --Al