I've just bought a 20" iMac and after switching it on I start the Software Update. I'm currently downloaded the OS X update (10.4.6) which is 191 MB. Currently, it's going to take three hours to download! On a 2mb connection, this is quite slow. All other downloads seem to run at a decent speed. I was just wondering if anyone else has encountered this problem? Perhaps I need to forward some port on my router?