Recently I upgraded from a 10.5.8 to 10.6.3 snow leopard. SInce upgrading I can't get my software updates to work, it goes through everything and once you restart it, it just sits sit there with the mac background and cursor. I have to always force shut it down, I once even let it sit there for 4 hours and did nothing. So i upgraded to 10.6.4, still the same result. Thanks for your help in advance. All software updates worked during 10.5.8, everything was out of date so i got the 10.6 (not that the 10.6 is up to date but I wanted to at least get a few more updates to the point where I can actually view netflix or have the appropriate itunes for my iphone 5)