A family of Microsoft relational database management systems designed for ease of use.
You probably linked the tables based on a drive letter mapping when you should have used UNC (Universal Naming Convention) so that it wouldn't matter that users had different mapped drives.
You can use the Linked Table Manager to put in the UNC path. Just open the Linked Table manager and then select the tables to be relinked (select only those for a single data source at a time though) and then click the Always Ask checkbox. Then when the browse comes up you can browse to the location using My Network Places > Entire Network > and so on down the line. Or you can figure out the UNC path and then just type it in the bottom box of the dialog that came up to select the database:
Also, I hope that these databases are SPLIT (frontend / backend) with the frontend as a COPY on EACH user's machine.