I know what happened...on the home page at the CDC the message:
"SAN FRAN/HOLLYWOOD DATES ADDED: Headline date added at The AVALON in Hollywood on August 6th. The Pound in San Francisco is on the 5th." was typed on 06/21/06 and that's why that date accidently came up on the tour list...
P.S.
...and I would never think you are an idiot...