Hello All, I am running 10.10.3 on a Mac Pro 1,1 with a NVIDIA 560 TI video card. Everything was going well and 10.10.3 was working well until I installed the supplemental update and the NVIDIA Web Update. With the 346.01.02f02 driver, the system will boot but I will get no output to the monitor. I can connect using screen sharing and I can see the card in the About This Mac menu and the System Information. I tried uninstalling the drivers and using the default Mac drivers, which used to work in 10.10.1, but it sends me in an infinite reboot and I have to put my 7300 in to get it to boot. Is there any fix for this without wiping it and going back to 10.10.2?