Ok, calm down :-D
No board means exactly that - the system cannot see the board. This is 99% of the time a loose fitting voodoo card in the Mediator. Make sure the card fits snugly in the Mediator. if not, raise the Mediator by using washers. 1mm should do the trick.
Once you checked it physicaly, just do what you did before and the board should be found.
