SIMnet will complete its transition to the new gradebook on Friday, July 28th. After the 28th the old gradebook view will no longer be available to any users. The Results section on the left-hand menu will no longer display the Gradebook and Gradebook (new) options. The only option will be Gradebook which will navigate to the improved gradebook.
Our post on May 18 covers more information about the new gradebook.