on my macbook pro, the how to checklist got me to #3, then did not match my screen display so checklist "how to" won't work, how else or where else to fix black only ?
walking thru the "how to set up grayscape" and got to #3 on my MAC BOOK PRO,, and #3 and on is NOT THERE, in white window. so other way to get to go to grayscape
