» Fri May 11, 2012 1:07 pm
Alright, series of questions to diagnose your problem:
Are you able to dual cast any spell at all?
Do you have the corresponding dual cast perk for the school of magic that you're trying to use?
Do you have both Flame and Firebolt? If so, try using both, as it's easier to tell whether or not firebolt is dual casting since it charges a single orb.
Have you taken a look at everything in third person? Due to an animation glitch, my character can equip right handed spell below camera, and I can't always tell if they're being dual casted.