[ratchild]

Blue Valkyrie is right, if you have a sorcerer you can't scribe scrolls into your spellbook, you pick them when you level up. If, however, you do have a Necromancer, then there seems to be some if you can't learn ANY spells. Have you tried checking the schools the spells you're trying to learn to see if they are opposition? Or perhaps a different level on your spellbook screen.