That is bad news!
I stopped playing W&W because it caused my PC cpu to become overworked. You could hear the difference when it was playing and when it was not.
Edit: this is generally a problem with any game possessing elaborate graphics, not just W&W. It becomes a problem when my flat becomes warm, air conditioning is not too good.
Edit:
On this page you will find many save game files, including three for W&W. The larger two are for parties that are nearly finished. This is one massive spoiler but it will enable you to check the entrances to all dungeons, not just the crypt.
http://www.tk421.net/wizardry/files.shtml