After installing my new video card my sound is totally gone!?

i installed a new video card and now my sound driver is gone! i reinstalled the sound driver but its like it didnt work at all.my video card i installed is ATI Radeon HD2400 Pro

my sound driver was AC'97 sound codec from Realtek



If anyone has any solutions, it would be a great help!~ =]|||the drivers shouldnt have any conflict at all.



I would suggest checking your wires.. Maybe you pulled one out or put it back in the wrong place when moving around the tower during the graphics card installation.