A friend of mine's got an old Vaio picturebook (PCG-N505VE model) and he's trying to upgrade the memory from 64 to 128MB. Problem is that I haven't really worked with Vaio's before so I don't really know what to do. Apparently there's no locking door that exposes the memory area like there is in every other laptop I've seen. Anyone have any idea how to do this upgrade without going to a Sony service center?