Pointlights and shadows. (Solved)

SteveM17

I feel like I should know the answer to this, but it escapes me at the moment. How do I get pointlights to cast shadows? There's nothing in the preference tab that says "shadow" or "cast". I think I'm missing something blindingly obvious.

Cheers.

(Using 4.8 by the way)

EDIT: OOps, turns out I'm an idiot. Daz had changed to Iray instead of 3delight. I switched back and shadow option has returned.