I've been unable to connect to my school's open Wi-Fi network for a couple of weeks now. Well, to clarify: my iPod touch will appear to connect to the network and display the Wi-Fi icon, but I'll get an "unable to connect" error message when opening Safari, Mail, App Store or any other internet-linked app. It connects just fine to other networks, which at first made me think that it was obviously the school's Wi-Fi that was the problem. However, I mentioned this to a teacher and several staffers, and they looked at me funny and pulled out their iPhones, which connected to the "Guest" network just fine. One had a 2G and two others had 3Gs, and all devices including my iPod touch have the latest 2.2.1 software update. We were all standing pretty much in the same place. This is a bit weird...any ideas?