i had a problem with Haer'dalis. I only picked him up for his quest on my second run through and when i got him he didnt have any mage spells. I went to the mage book screen and the whole book was blank
(like the priest scroll page for rangers/paladins who are not yet at a high enough level to cast spells)
This was really wierd, i tried resting to sort it out but this didnt help.
There are no stupid questions, only stupid people.