My shiny new Powerbook is a delight, but it does something that I hadn't noticed previously. I'll be working along typing or browsing and suddenly it will just grind to a halt doing something like updating articles in netnewswire or starting a program or copying files. I get the beach ball in that app, whatever it is, and nothing happens for quite a while, maybe 15 to 30 seconds. If I can see load it's normal, and the machine has enough RAM, and doesn't appear to be obviously I/O bound (no disk grinding).
Any ideas what's causing this periodic hangup? It's so frustrating, especially since the machine itself is so fast and everything else about it is great.