Synced Audio Issues, Beta 6

My audio all seems to be working fine, except when I go to sync it with a clip. After I auto sync the clip plays back with no audio (no sound through headphones or on the meters). If I try syncing manually, it rapidly plays a single frame over and over. If I stop, click on another clip, and go back to the one I synced, no audio plays. Video is playing fine on all occurrences. Any Ideas?

Have a project due in about a week, and really don't want to have to go use Premiere if I can avoid it.

Thanks in advance for any help!