The PrintMonitor has been corrupted. You will need to replace it. Follow this procedure:
* Locate your original System Software disks that came with your Macintosh computer or the disks that came with your Apple printer.
* Open the Extensions Folder in the System Folder on the hard drive.
* Locate the PrintMonitor and drag it to the trash.
* Empty the trash.
* Drag a new copy of PrintMonitor into your Extensions folder from one of the System Software disks. (The disk name is usually "Printing"). Or you can copy PrintMonitor from one of your Apple printer disks.
* Restart your computer.
Note: Some newer System Software disk sets now only contain compressed files on the disks. The PowerBook 500 series System Software disk set is an example of this. You won't be able to just drag a copy of PrintMonitor from one of these disks because the files need to be decompressed by the Apple Installer.
If you have a Macintosh computer with this type of disk set, follow this procedure:
* Locate your original System Software disks or the disks that came with your Apple printer.
* Open the Extensions Folder in the System Folder on the hard drive.
* Locate the PrintMonitor and drag it to the trash.
* Empty the trash.
* Insert the "Install Me First" disk.
* Double-click on the Installer icon.
* Welcome to the Apple Installer dialog appears. Click "OK".
* Click "Customize".
* Select "Software for All Apple Printers" from the list of options.
* Click "Install".
* Insert the "Printing and Fonts" disk when prompted.
* Re-insert the "Install Me First" disk when prompted.
* Restart your computer.