Says right there in #4 from what you quoted, Umbraz.
num.4 wasn't there before. post edited :)
and yea, i clicked on a spell in my spell book (summon imp) then tried to put it in the config in AutoBar thing page. whatever; it didn't work, it just 'destroyed' the spell (un-placed it from the mouse). also tried dragging a spell from the spellbook and again...no luck.