Installed GA-EP45-UD3P, but no sound from Audio In

Hey guys yesterday I swapped out my motherboard, cpu heatsink and PSU. And I'm running Windows 7 64-but and everything is fine but I cannot get any sound. The sound icon has the red 'X' on it. I can get sound if I use a regular USB headset, but not if I use the Audio In and Microphone ports.


I know a little bit about computers, but I'm no genius. Is this most likely a driver issue?

By the way, I don't get sound from the audio in ports from either the ones on the motherboard or the front panel.



Any help would be great! I'm confused and trying to get my PC ready for Diablo 3.


Thank you.