I have recently installed a new graphics card, sapphire 7970 ghz edt., but i am having some weird sound issues. When i am browsing the internet or watching a movie, the sound will randomly cut out for a second then start up again. However when playing any game, the sound never cuts out at all. I am using windows 7 64bit ultimate with an hdmi cable hooked up to my tv from the gpu slot. Any ideas on how to fix this would be greatly appreciated and thanks in advance.