Depending on how tech savvy you are, you could try booting it with an Ubuntu liveCD to see if the soundcard works in Linux, to see if it's a Windows fault or a hardware one.
But if you're taking it in to be sorted, please let us know how your service with Lenovo is. I am probably never going to buy another brand of laptop again, I love Thinkpads, would love to hear how Lenovo/IBM treat you.
But if you're taking it in to be sorted, please let us know how your service with Lenovo is. I am probably never going to buy another brand of laptop again, I love Thinkpads, would love to hear how Lenovo/IBM treat you.