Hi, I've iMac 27-inch and iPhone 3G. On both devices when I'm trying to watch YouTube video there is very slow loading, but only in my house. Everything is wireless. I've got router Linksys WAG300N - maybe this is an issue? If yes how to solve it? iMac always stays home, but when I tried to watch some videos on Youtube in school everything was very was. Of course it is not because of my internet speed. I have 6/7megabitb/s, so download speed is 750-800 kilobytes/s. Any tips?