I bought a DVI -> hdmi adapter (4870 has a dvi connector) to connect my pc to my tv via hdmi. Picture works fine but i get no sound. Do i need to buy another cable for sound or update drivers?
I've had "ATI technologies Inc. - Display - ATI Radeon HD 4800 Series" in my windows update under optional updates for a couple years, i haven't updated them because everything seems to be working fine. This update is dated 16/06/11.