GH22Ls40 wont read disk

Hello I installed a lg gh22ls40 today and i alreay had a toshiba sd-r5372 installed i did not take out the toshiba and they both currently are in the computer. the toshiba works fine and the lg everything works but it will not read any disk cd or dvd. do I need to remove the toshiba? please help

did you set the jumpers right?