Trouble with Applets

I am having problems serving applets with Jigsaw 2.0.1 running on NT
4.0.
It seems to work fine on a browser local to the server, but when try to
access the same applet from another machine I get a Not Found error.
The .html and .class files are both under \Jigsaw\Jigsaw\WWW.  I observe
this problem with both IE 4.0 and Navigator 4.5.  What am I doing wrong?

Below is a trace of the error:

GET /TestApplet.class HTTP/1.1
Connection: Keep-Alive
Date: Tue, 26 Jan 1999 20:13:46 GMT
Accept: text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2
Accept-Language: en
Host: tdinh-nt
User-Agent: Mozilla/4.0 (compatible; MSIE 4.01; Windows NT)

HTTP/1.1 404 Not Found
Date: Tue, 26 Jan 1999 20:13:46 GMT
Content-Length: 186
Content-Type: text/html
Server: Jigsaw/2.0.1

Trung Dinh
tdinh@interval-logic.com
(650) 322-1323 x239

Received on Tuesday, 26 January 1999 17:52:15 UTC