You can get the patch
here. You may also want to get the latest version of your video and sound card drivers.
Also, you can obtain information on solving some problems, including the "Slowdown Bug", at
The Pit's FAQ page and
The Pit's Planescape: Torment FAQ page. The second page contains
spoilers.
[ 04-29-2001: Message edited by: Sojourner ]
[ 04-29-2001: Message edited by: Sojourner ]