I am new to the BG world, and I seem to have a problem. I just recently joined up with Nalia, and i was jumped by some slavers. This was cool and all, i got a sweet short sword for my stalker, but now nalia's spells are browned out (unusable). I dont know what happened to her...I went to the temple and got her a greater restore, but she is still not able to cast? What is going on here? is this normal or what can i do to resolve this? Thanks for your help in advance

Do U use any kind of armor on Nalia?

take away the leather armour that u gave her, mages can only cast spell in a robe or none at all.