My G4 Powerbook is acting very funny. Everything is very slow or not working at all. When I went into activity monitor, in the li'l CPU monitor window, everything is blue. There's a little legend thing that says blue means % nice (I don't know what that means) and next to that it says 98%. The only process that's using anything is called "MDCPd" and that's using about 96%. I've never seen this before, and I have no idea what's wrong. Can anyone help? Thanks