Previously, I’ve blogged about the issues I’ve had getting 4Gb of RAM to work successfully in my unibody 15″ MacBook Pro. For a while, I ran with 3Gb using an original 1Gb and one of my new 2Gb sticks, but it wasn’t ideal for running Windows under VMWare at the same time as other stuff. In the end, I’ve given in and just bought the 4Gb RAM upgrade from Apple – not cheap, not ideal, but at least now it’s – so far – working. I definitely think that Apple should have taken more ownership of this problem, as it’s been reported and discussed at some length on their support boards, though.