EDIT: Got them working
Hey i recently bought some speaker (Logitech LS21) for my new rig and things were working properly but then unplugged them as i was moving the extension lead that they were plugged into so all the cables were closer to the computer and they werent stretched, but after plugging everything back into where they should but my speakers wernt playing any sound. I know that this is not the speakers fault as i have plugged them into other systems and they work perfectly, so i can seem to find why they are not working so could somebody please help me.