In preparation for SP1, I tried to update the realtek driver (high
definition) for my Toshiba. While I CAN install the 1.89 driver from
realtek, I lose functionality, like headphone output and am missing the
Realtek HD Audio Manager in control panel. I remember somewhat this
same issue last year when tracking down a distortion problem--the
drivers from Realtek don't provide the proper support for this laptop.
Anyone run across this and know of a solution?

The Toshiba site still has the much earlier driver package from last
year, and that's what I reinstalled in order to get back full
functionality. The MS site shows that the version I have is not
compatible with SP1, so at some point I will need to load a compatible
sound driver.

Dave