it just happened out of nowhere. my sound was working fine last night, then this morning I played a video and there was no sound. I clicked the volume icon in the task bar to see if I could hear the 'ping' when you adjust volume but it repeatedly froze and crashed (it's still doing this now after rebooting). Sound in control panel also crashes first thing when I try to open it. what the eff is going on? I want my sound back.