Originally Posted by nihil
Sorry, with the T60 you need to hit the F1 key as soon as the Thinkpad Logo is displayed and that will take you into BIOS setup.
In Windows XP "Sounds & Audio Devices" <Audio> what does it say the "Sound Playback Default Device" is?
Something like Intel AD1981 (possibly 1984?) HD Audio 1.0?
Also, whilst you are there, go into "Advanced Audio Properties" <Speaker Setup> and make sure that you have one of the laptop options selected.
Finally, go into <Hardware>, select each item one by one and click on the "Properties" radio button. Look to see if any of them are reported as having problems.