The Phantom Page syndrome is an inbuilt problem with the vBulletin forum programme, and it requires a regular database cleanup to correct it.
The webmaster has to be on the ball, when it starts to happen.
I'm not sure that it requires screaming in 28pt bold, though - I always thought Lon More had a pretty good sense of humour.
It must have deserted him for one frustrating moment. Computers that constantly say 'no', can do that to you.