Changing directin of animation path

Hi all,
I’m newish to blender and am following the coffee cup fracture tutorial on blender cookie, the problem is I have the bullet parented to an empty. The empty is animated along the z axis., As part of the tutorial the empty is supposed to be rotated 90[SUP]0 [/SUP]allowing the bullet to change direction, The bullet changes angle but the animation path remain on the z axis, I’m pulling my hair out and there’s little left so would really appreciate any help with whats probably a very basic error.
Thanks
Rob

Attach or post a link to your blend file so we don’t have to spend the next half hour trying to figure out what you are talking about