Wow, you mean the throwing mechanic is different when done from the character slots as opposed to tossing at the top of the screen...? I never would have noticed that. Admittedly my party's not using any ranged weapons besides spells, so I guess I've never seen anything launched from a characters' h...

I'm having the same issue. A friend of mine who had just gotten to level 4 was able throw a rock through the teleporter to activate the pressure plate on his first throw, no problem. I must have tried it 50+ times now, both when I first entered Level 4, and now again after completing the other four ...