I finally got my ThinkCentre up and running, now I trying to get all of the onboard devices running as well. For the most part, that seems fairly straight forward, but I'm a bit confused about the sound driver. Lenovo shows 4 options...2 universal drivers, which specify either SP1 or SP2, which can be ruled out, because I just installed SP3. The other two drivers appear to be about the same, except one says that it is for XP with Cadenza software, and the second just for XP. You can see what I mean by taking a look at this link: http://support.lenovo.com/en_US/downloads/default.page# It may not work if you use Opera, I had to use IE instead. The bottom line is that I have no idea of what Cadenza software is, or if it is part of the driver download itself? Does someone else know?