This is kind of a strange set up that I have. I have my surround sound receiver hooked into my computer through an optical cable so that I can watch TV and play games through a projector and have the sound come from the screen and not the computer. It's pretty sweet. But everything works well except for the TV signal that I have coming through a Leadtek USB TV Tuner Box. Anyone know about this issue? I'm probably the only person in the world with this problem.