can anyone tell me how to add microphone in playback? i am using sony vaio laptop window xp sigmatel driver. my friend helped me enable the mic long ago and it disappear after I restore my laptop to an earlier time. I've read through some other's threads and tried to do it myself but for some reason I can't find anything such as enablemicfromplayback or enablemicinputmonitor. Can someone help? I would be really happy and appreciate.