Due to issues with the Mac OS 10.8.0 – 10.8.2 (Mountain Lion) and Mac OS 10.7.5, SpectraViewII is not able to communicate with the displays on some systems with Nvidia-based video chipsets when connected to the DVI inputs on a display. This includes both Thunderbolt (miniDisplayPort) video outputs when using a miniDisplayPort to DVI cable, and DVI-to-DVI connections. This impacts all MultiSync 80 Series, MultiSync 90 Series, and the MultiSync P221W models. The NEC MultiSync PA Series and select MultiSync P Series models can utilize a USB connection to the display and avoid this issue if necessary.

This issue has been resolved in Mac OS 10.8.3, which as of March 14, 2013, is now available via the Software Update feature in Mac OS. All customers impacted by this issue are encouraged to update to OS 10.8.3 or higher.

Customers with impacted systems currently using OS 10.7.4 or earlier are encouraged to either not update to OS 10.7.5 or update to OS 10.8.3 or higher.