The issue is that the vanilla Elemental resistance Magic Effects do not seem to work. I am using the ABfrostResist (vanillia magic effect) at magnatude 100 and frost still damages my actor. Same with Fire and Shock. I used a debug message to be sure it is on the actor and even checked their actor value for FrostResist and it is 100 while the spell is on and 0 when it is off.
I read this http://www.uesp.net/wiki/Skyrim:Resist_Magic:
Magic Resistance decreases the damage of any offensive spell by the displayed percentage. Stacking is possible, but total Magic Resistance is capped at 85%.
But the DEV have notes in the CT for vampires indicating that they shoudld take NO frost damage while using ABFrostResist.