The script works fine. Our IE implementation is set to auto detect
proxy. Some of my users pickup the wpad.dat script and use the proxy
properly. Some of the users do not pickup the script so they do not use the proxy. It seems that even though the users have the auto detect set on their browsers, they are not auto detecting. I would say about 2 out of 10 people are hitting the proxy.
Is the DNS suffix set correctly on the client machines? Try "ping wpad", if that doesn't work try "ping wpad.yourdomain.com". If that works your DNS suffix is not properly set.
HTH
Nicolas