This has been going on for awhile now. On my iMac, every once in awhile the CPU usage will jump to 100% on both cores, and the fans kick in. I just witnessed it do it now, and it is totally random. In activity moniter, DashboardClient is what is making the CPU work so hard *that process takes up about 98% on both cores). The only way to stop it is to restart. Any idea on how to prevent this from happening? It is just kind of annoying, and like I said, it won't go away until I restart.