There is a known issue with some of the hair from OOT. If you're using it, and you paid for it, than there should be some updates for it on DAZ. For the OOT hair that gives you problems (crashed DAZ on me three times before I figured it out), than you have to remove any file for the "Transmitted Color" setting in the Surface properties for the hair.
I haven't noticed any lighting issues. You may want to play with tone mapping.
This simple render crashed my system three times when it started to render. I done some searching and found some information about most of these has to do with a shader OOT uses for his hair. This was with OOT TopModel Updo in my case. This render was possible after I done the above adjustment...
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Note: This is Cassandra from "Dating my Daughter".
#Daz Crash