Hello. Im having trouble hooking up some Insignia 5.1 surround sound speakers to my computer. I can't seem to get them right. When I click the option "test speakers" some sounds come out of the wrong speakers (sounds that are supposed to be coming out of front right and front left speakers are coming out of the rear speakers. Im pretty sure I've hooked them up correctly to the back of the subwoofer (which also serves as the receiver) because they are colored and all you have to do is match them up. However, there are three other input cords that are to be plugged into my laptop that are colored Black, Green, and Orange. There are three input areas on the right side of my laptop right by each other but I'm not sure which order to put them in considering they are not colored. I have a Dell Studio 17 if that helps. Thanks guys.