I have an imac 3.06ghz 21.5", my brothers and sister all have either a mac mini or macbook. Whenever I try and load the apple store, software update or the itunes or app store, I get a connection error saying I should make sure I'm connected to the internet. The app store won't load on my iphone either unless I connect via 3g- same goes for my brothers iphone and my dad's. Anyone have any idea what the problem is? My brother deleted some software update plists and he can now get software updates, however I deleted the same plists but my software update still doesn't work! Any advice or help would be greatly appreciated, as, I'm sure you can tell, it's really annoying issue! Thanks in advance.