Damaging myself and my summoned creatures.. Can I turn this off?

[Styxx42]

Hi,
Love PRC first and foremost. 
Thanks for it.

Question is.  My buddy plays a caster and he and his summoned creatures keep taking splash damage from his attack spells.
As there is only the two of us, we die pretty quickly when his summoned help and himself die and then beat me up after that.

I have gone through the switches time and again and can't really see where this would be enabled.  Or would it be module specific?
As far as I can tell this has happened in two different modules.


Any pointers or help would be very appreciated.
I was using PRC 3.3h and just today have updated to 3.4 (Sticking with what works with CEP 2.4 for now)


Thanks

[xwarren]

Try changing difficulty setting in game options.

[Styxx42]

Try changing difficulty setting in game options.

Will try that.

Thanks Xwarren for taking the time.