Sometimes the printer driver cannot be installed because another application is running.If the Installer for the printer driver does not start up automaticallywhen you insert the Setup Software & User's Guide CD-ROM, click Start,select My Computer and then double-click the CD-ROM iconFor non-Windows XP users, open the My Computer window and then double-click the CD-ROM icon.Note If you are typing in the file name, you must specify the CD-ROM drive letter and theinstallation program ("Msetup4.exe"). The CD-ROM drive letter is computer dependent.Ensure that there are no problems with the Setup Software & User'sGuide CD-ROMIn Windows, use Explorer to ensure that the CD-ROM can be read. In Macintosh, check that the CD-ROMicon is visible. If there is a problem with the CD-ROM, contact a Canon service representative.