Hello everyone, In case it isn't obvious by the fact that I'm even posting in this section : I'm pretty clueless when it comes to my mac, as easy as it is to use. So please bear with me. I need to update to 10.6.4. I am currently running 10.5.8. The new update isn't available as a software update. I am curious as to why this is. Do I have to purchase it? I attempted to download it from apple.com, but my mac tells me I need version 10.6, which I am having trouble finding.