ok well i have logitech z640 speakers which are 5.1. I have a sound blaster audigy sound card. The speakers all used to work fine and then a i unhooked my computer and moved it to a different room and ever since then i havnt been able to get the 2rear channel speakers to work. Some help would be greatly apreciated.
try switching rear speakers with front to see if problem follows rear speakers or not, replug in all cables, sound & power & reseat sound card
Check that you've plugged the speaker conenctors in the right sockets Also check that windows hasnt reset your speaker configuration
there all pluged in properly iv checked that. I have also tryed taking out my sound card an reinstalling the drivers. Also tryed the windos config on my speakers. All the settings are right so im really confused here.