Hi everyone, If I buy a 1GB stick of RAM for my MB, will it be ok? I know you don't have to have matched RAM, but a lot of people have told me that I should match the RAM in the MB, because of the shared video memory. Is this true? Because I eventually want 2GB RAM in my MB, and don't really want to first buy 2X 512MB sticks, and then later have to replace them with 2X 1GB sticks. I would rather buy 1GB, and then later another 1GB. So if I have 1.25GB RAM in my MB for a couple of months, would it be fine? Thanks!