Roll it back to what worked.
i have the ibm T30, with the soundmax sound device built-in.
i recently installed a new HD with a new winxp sp1, updated to sp2 and all other updates.
installed the soundmax audio driver from ibm.com, and the sound stopped working! i see in device manager that its installed and working properly. but windows media player says no sound device or no active mixer installed. in the bios its enabled. in system information the status of the sound is "ok".
in the event viewer i see this error: Redbook could not open the MIXER device. It may not exist, be in use, or there may be other audio problems. Redbook requires both a WDM audio driver and kernel streaming to be enabled. The audio device may have changed in an unsafe manner, been removed, or have other problems."
i tried reinstalling the driver of soundmax, i tried fixing registry, i tried microsoft discussion forums, google newsgroups, every search on the web, still didnt find what helps me.
please anyone ???