Can I run the apple update? At somepoint Itunes tried updating and it went into system update but 80% through the search for updates it froze on me. I wasn't sure if it is possible to run the apple system update. In one of your posts you mentioned that in order to run system update you have to install a retail version of macosx. If I get a retail disk do I need to follow any special guide similar to yours to make it work...and when it does run can I use it like a normal mac with updates and all?