Passive Heroes

The enemy heroes at my singleplayer map is passive.
I remember at the beginning of making of this map, the hero would use spells, like use divine shield, use items like summing the dragon from the dragon egg (charged items), and now it doesnt do anything of this, even thought all is learned and avalible. It doenst do anything, except attack my units like all units do. Basicly, the hero is now just a footman with more hitpoints and more attackpoints. I have searched other forums as well, and i just can't seem to find any similiar question. Argh.
Anyone know how to fix this?

Hi... try to use triggers that force the unit to do spells.... like:
Event:
-if life of *hero* is equal to or lower than 400
Conditions:
Actions:
-Then order unit to blablabla cast divineshield blablabla....

(i suck at triggering)

Did you change the heroes so that they're no longer under control of a computer player? Heroes that are controlled by a human or not-present player won't use skills, but as far as I can tell, one controlled by a compy always will.

here is the map i am talking about. I have the same problems in other thought, so it must either be something i keep doing that mess this up, or it is something terrible wrong with my computer..
If someone want to test this out, and see if the heroes use spells and charged items on your computer, it would really help me alot.