James Bainbridge shows us a method for quickly restoring xrefs that have been broken.
"Recently we have upgraded some of our file structures and added servers, which changed drive letters on some of our projects. Unfortunately this has broken the folder path to our external references. So instead of reloading all of the references, I’ve been using the Projectname command to quickly fix the problem.
"Using the Projectname command allows me to define a list of search paths in the Project Files Search Path under the Files tab of the Options menu, which points AutoCAD to where the external references are now located for that project. Then in AutoCAD, I type in Projectname and simply key in the same project name to the one that I created in the options dialog box.
"All that is left to do is simply reload the references to update the new folder path."
NOTES FROM CADALYST TIP PATROL: If you have several referenced files this can be a quick way to update them. If the Project Name in the Options window is removed those files you changed will no longer know where the xref files are so you will have to do it again. If you use multiple profiles when working with AutoCAD this could be an issue. Also a different user on a different machine might not have the Project Name set up in their profile. Just use it with caution. An additional method would be to use the Relative Path option when setting up your xref files. This tells AutoCAD to look in the same folder or a subfolder and ignore the drive letter. It also helps when sending out your DWG files.