As of late ( just since the last OS update, I think ) when running a keynote presentation through projectors my dark slides appear too dark and print on the same becomes illegible . I have read lots of presumed workarounds addressing this problem on other forums, but, come on ! Won’t Apple address this issue with another update, since the last one appears to have caused the issue in the first place ? We have two feeds to each ( dual) projector and my PC toting counterparts show me up all the time with perfectly normal displays while my Macbook goofs up darker images. And, yes, I changed my display gamma back to 1.8 ( from default 2.2) and it doesn’t help.