New Post: Trying to turn off Windows SAM authentication and getting 401.2 error

I changed the authentication source to 'none' in BugNet and commented out the AuthenticationModule references in the web.config, but now when I try to access the site I'm getting a 401.2 error. What am I missing? My BugNet website has anonymous and forms authentication turned enabled and windows authentication disabled. Should I be using Basic??

Thanks!