Infraction: 6. Do not post unless you have something new and worthwhile to say.
Message to User:
"Thank you" posts belong in PM to prevent thread clutter.
Not that it'll make much of a difference, but a better use of this macro would be as follows:
/cast [mod:alt] Fireball; Frost Bolt
This way every time you hold Alt, it'll also show the tooltip for Fireball, and when using your Alt modifier, it won't give you the text warning saying "Another action is in process", as with your current macro, using the Alt modifier would attempt to use Fireball aswell as Frost Bolt.
Ah thank you. Good to know