Streaming, help?

Hey guys, when i was thinking about streaming when lvling+raiding and such but i have one problem.

Everything is fine, the setup, the records except one thing

i use ''Justin.tv'' thing, and when i use it, it follows my mouse, the media encoder is right, it sticks on the wow screen, but the justin.tv thing shows after my mouse, it doesn't show the wow screen, it shows where my mouse is, any1 knows how to fix this

thanks.