Hi got a wee problem I'm using an Asus HD 7850 with HDMI this also is for sound to my TV my problem is on cod ghosts I don't get sound on the loading screens I get sound in game perfectly fine has anyone any ideas the rest of the system is cooler master haf xb,as rock z87 extreme4 motherboard,i5 4670k,8gb g-skill 2133 if that helps and all drivers are up to date I tried disabling onboard audio but that just gave me an d6 error which I believe is related to the graphics card so any and all help welcome