If you select a NEC MultiSync display product in the software that does not correspond to the one connected to your Quadra, Centris, LC or Display Card 8•24 during the installation process, your MultiSync display might not synchronize properly after making a display mode change. If your screen is not readable after making the change, restart your Macintosh while holding down the "r" key. This process will restore your desktop to 640x480 display format. Please make sure you have now selected the correct display product connected to your system.
If you have further questions on how to operate the software, please call NEC Technical Support at 1-800-388-8888.