Written by heaths the 7 Aug 09 at 05:59.
Global category: Account Control.
When logging in with the Google OpenID provider URL - https://www.google.com/accounts/o8/id - SourceForge posts an error that usernames must consist of lowercase letters and numbers. As you can see, the URL above meets those requirements (not also that "id" is just "id", and not your user ID).
This occurs whether I'm on the initial login screen or trying to associate my OpenID with my current username/password login.
Google as an OpenID provider works with other OpenID sites.