Unless you've set the sound card, or speaker controler to convert normal 2 channel left and right stereo to DD 5.1 you will only hear 2 speakers.
2 channel left and right stereo sound only nets 2 speakers even though you have 5.1. Remember that everyday normal sound is not encoded DD 5.1, i.e. However, I'm using a Creative Pro sound card. I get something very similar with my Logitech 5.1 setup. 7.1: surround spakers OK + left 2nd surround sound comes from right front speaker * Checked other spaker configuration settings: * Rechecked cables from Creative Subwoofer to speakers * Rechecked cables from MB to Creative Subwoofer * Checked volume control, not set to zero * On Realtek HD Audio Manager: Speaker configuration: 5.1 Speaker Optional spakers: center, subwoofer, rear pair checked full range speakers: front left and right and surround speakers checked speaker fill/swap/bass management disabled. * Plugged in 3 jacks, colors matching (3 in a row - black:rear, orange: center/subwoofer, green:side speakers) I did a search on this forum and Internet, but could not find any solution to this specific problem. I don't get any sound on all of them when test button is clicked, only surround speakers work. I have a problem with correctly setting the Realtek HD Audio with my Creative Inspire 5200 5.1 speaker set.