I am getting ready to do an RTI shoot in a museum, and discovered to my horror that since I upgraded to Yosemite (Mac), I can no longer shoot tethered. The OS doesn't seem to see my Canon EOS D6. And while my MacBook Pro can see the WiFi from the 6D, EOS Utilities does not. Anyone else having these problems with Yosemite and come up with a workaround? Not being able to shoot tethered is a real setback.