APEX

I have seen a couple posts that talk about removing the APEX_PUBLIC_USER entry from the DAD and using DAD authentication for the APEX applciations. This works but it prompts me with a IE style login pop up window before I even get to the APEX login page. My os creditionals are the same as my db so I think there should be a way to pass my credentials seemlessy through so that I don't get that ulgy IE login prompt. I have tried setting up NTLM authentication on my server but I think I am running into the issue that the server might be trying to pass MyDomain/MyUserID as my user ID when it should be just passing MyUserID. Has anyone else done something like this? Thanks.