I am playing MM6 and MM7 (I can't decide which I like better) but both have the same problem. I'm attacking from the ground. Of course, in the dungeons I don't have a choice.
Had some problems with the dragons, but they seemed easier to zero in on. With most monsters, like Goblins, it's easy to target them. Don't know why Titans are so hard.
I'll try this weekend to find the sweet spot and aim around the knees!
Thanks for the suggestions!
Titans in MM7 (Their Fortress) are easy to kill. Use Rock Blast as angle shots. If around a corner, bounce as a bank shot. If down a hallway, bounce against a wall to be able to get them beyond their range. (If you bounce a boulder, it goes farther than the Titan bolts. You can stand in the green and hit them.)
In open areas, get behind hills and use indirect spells if possible (Meteor strike etc).
Open sand is more difficult. Never go at a group. Get the lead Titan to come toward you, to keep the others from also flinging their bolts. Once you have him far enough away from others, then use your best non-air magic or hit hard and fast.
If you get too close, the Gog version of the game will shoot or hit what ever is behind the monster. You need to be at least the Weapon length away for the game to target the monster.)