Hello. I am using a santa rosa MBP. Will send back to Apple after the holiday to have a look on issue related to the video. I recall that there were a few issues related to Snow Leopard when it came out. What is the latest version? Have those issues been fixed in this version? I wonder if this is a good time to upgrade the OS. For your information, my MBP has 4GB RAM. It is running OS 10.5.7. I use both Bootcamp and VMWare Fusion 3.0. I wonder if there will be big performance increase if I upgrade the OS. Thanks.