Apple has updated the graphics card firmware in the Mac Pro.
The company's 2MB GeForce 7300 GT Firmware Update will update the firmware on all such Nvidia graphics cards in the Mac Pro.
Mac Pro customers can also choose to use an ATI Radeon X1900 XT or an Nvidia Quadro FX 4500 card as build-to-order options when they buy a Mac Pro. These cards aren't updated by the new software.
The updater application will be installed in the Applications/Utilities folder. "Please follow the instructions in the updater application to complete the process," Apple warns.
No additional information regarding this update has been revealed.