I have a quick question. I have to give a Keynote presentation using a VGA connection to a projector. I have a new unibody MacBook Pro with the mini dislpayport connection. Since I already have a DVI to VGA connection from an older PowerBook, would it be possible to just go mini displayport to DVI to VGA using two adapters, or would I need to go directly from mini displayport to VGA using just the adapter that Apple sells for this purpose? Thanks!