[ROM] CyanogenMod 7.1 RC1

[mikemo83]

Hello there. I have a CM7 in my ATT Captivate and the sound works for a while, then it stops(calls, notification music, speakers everything) Before install this rom I try a beta version of ICS, so I'm not shure if a file get corrupted. In fact, I took it back to stock before install the CM7 and the sound didn't worked . Do you know how can i get the sound back?
Thanks!!!