When i say that my spells failed, i mean that i had casted many many many fireballs, scintillating spheres, chain lightnings, acid arrows, burning hands (and similar spells) on a single "Rat Form" bandit - only to see that he is still UNINJURED...
I just do not understand how can something still be uninjured after i had casted over 15 devastating evocation/conjuration spells at it!
Il try to get those save games from Luskan uploaded so you can take a look.
As for your question, ShadoOow, i am slightly confused - did you mean "stand guard" or "stay ground"?
As far as i know, "stand guard" phrase means that your AI should actively attack (even preemptive attack) any enemy that approaches or attacks him or his master.
The "stay ground" phrase resembles the "hold position" command, which i would interpret as a more defensive variation of "stand guard" (perhaps only defending yourself and master from enemies that are directly threatening you).
Either way, i think NWN has 3 combat commands (in radial menu) for your hench/companion AI:
Attack Nearest - attack any enemy nearby like a completely raging aggressive madman.
Guard Me - attack any enemy that is trying to charge at me or is attacking me (or anyone from my party).
Follow Me - just follow me and do not do anything at all. The AI will behave like a cute kitten and just follow you around.
My own personal opinion is that the AI of hench/familiars/pets should be extremely aggressive - UNLESS set to the "Follow Me" command.
If anything, i would make the AI even more aggressive in the "Attack Nearest" and "Guard Me" modes.
Having a passive AI is something i really do not like, unless i specifically order it to be passive.