I recently bought a usb sound card because my sound was not working. When i plugged my headset into the sound card, the sound still didn't work but it showed that it was working in my playback and recording devices.
the usb sound card i bought was
http://www.walmart.com/ip/Insten-INSTEN-USB-Sound-Card-Adapter/28880354?action=product_interest&action_type=title&item_id=28880354&placement_id=irs-106-t1&strategy=PWVUB&visitor_id&category=&client_guid=94324b12-4af6-4ea4-8886-7d2b2130cee0&customer_id_enc&config_id=106&parent_item_id=28880181&parent_anchor_item_id=28880181&guid=08ba6b27-b654-4e1d-b313-7d49968046a3&bucket_id=irsbucketdefault&beacon_version=1.0.1&findingMethod=p13n#reviews
the usb sound card i bought was
http://www.walmart.com/ip/Insten-INSTEN-USB-Sound-Card-Adapter/28880354?action=product_interest&action_type=title&item_id=28880354&placement_id=irs-106-t1&strategy=PWVUB&visitor_id&category=&client_guid=94324b12-4af6-4ea4-8886-7d2b2130cee0&customer_id_enc&config_id=106&parent_item_id=28880181&parent_anchor_item_id=28880181&guid=08ba6b27-b654-4e1d-b313-7d49968046a3&bucket_id=irsbucketdefault&beacon_version=1.0.1&findingMethod=p13n#reviews