Yosemite problem with CALDIGIT FASTA-6GU3 My Mac Pro - MacPro5,1 - 6-Core Intel Xeon - 3.33 GHz running Yosemite 10.10 will not boot if a SATA device is connected and powered up. Just get a grey screen. Works fine connect to SATA drive after start up. I have reset the PRAM 3 time and the Mac Pro stops booting with a grey screen. Reconnected external with firewire cable and the mac pro starts fine. The drivers for this card are supposed to be built into the Mac system software. I have installed the Caldigit USB drivers for 10.10 and Mac Pro starts fine with a USB 3 drive connected so the problem is only with SATA connections. Any one have a work-around???