I just reinstalled a clean version of XP SP3 on a ThinkPad T60. After downloading all of the missing drivers from the Lenovo site, everything seems to work except for the audio.
I installed the audio driver from http://www-307.ibm.com/pc/support/site.wss/MIGR-62928.html (version 220.127.116.1126) so SoundMAX shows up in the control panel and everything in the Sound preferences looks okay, but no sound comes out of the speakers when I try to play music or hear the interface sound effects. There's also no sound if I plug in headphones and listen.
Some forums suggested installing hotfix Q888111 for the UAA Bus Driver but it's already included in SP3 so I can't install it. I also tried reinstalling the audio driver mentioned above in case something went wrong the first time, but it still doesn't work.
Does anyone know how to make the sound work?