Dear Expert, My existing SharePoint Site authentication Provider is set to form based authentication. While i try to access the site by using SharePoint Designer, it prompth me access denied message. so i had temporary change the authentication to windows, then i able access to the site by SharePoint Designer. ( is it SharePoint Designer can access to the site in form based authentication, please advice ) After done to SharePoint Designer stuff, i had change back the form based authentication with the membership provider as before. while i goto site collection administrator to change back the FBA Admin, i'm not able to access to FBA user list. (please advice) While i try to browse the site, it show me this "HTTP 403 Forbidden" error message. (please advice) i had check the web.config file. it should configure correctly. Thanks in the advance! Best Regards, Bey

Its tough to diagnose the FBA, but here are 2 good links which i used and 100% sucess rate. http://www.simple-talk.com/dotnet/windows-forms/configuring-forms-authentication-in-sharepoint-2007/ http://devcow.com/blogs/jdattis/archive/2007/02/23/Office-SharePoint-Server-2007-Forms-Based-Authentication-FBA-Walkthrough-Part-1.aspx One thing did you try to add the FBA user as policy for web app? are you getting the FBA login page or not? hope this help thanks -wsi am at SharePoint administrator