I've had this happen to me ever since Tiger, on all my Macs.... Basically while using Safari sometimes it will just stop working. By this I mean no web page can be accessed, entering a URL will just produce the loading spinner as if the internet connection has gone down. After a couple minutes wait, it will come back. I've never been able to diagnose the problem. It's not internet related because local IPs aren't accessable through Safari while this is happening (ie, 192.168.1.4:9000/index.html). At the same time other browsers and email works fine. It's happening on my intel and PPC macs, latest Tiger, Safari 2. Do you get this too? beginning to drive me mad.