Just to make it clear, since this is the thing that confuses most people the first time they try to throw... you must have 1 of the items you're trying to throw in both your ammo and range slot. If you only have it in the ammo slot you won't be able to throw. If you only have the item in the range slot, you'll throw that one but no more. Than as the others have said, either use the ranged attack button or /autofire.
Edited, Oct 26th 2006 at 10:56am PDT by Jiggidyjay