skywalker--every time I've seen a freeze problem with mouse movement like that, it's been as a result of a "stuck" disk of some sort--either a problem with a connected network volume, or a flaky Firewire hard drive that's gone to sleep and refuses to wake (or something like that).
Do you have any disks connected when this happens? If you've got a firewire drive attached, try just yanking the firewire cord out of it--in my case, I'd suddenly get a "disk has been unmounted improperly" error, but the system would spring back to life. Very, VERY annoying.
Network errors along the same lines have no easy fix other than a restart, unfortunately.
I haven't personally seen any of these freezes under 10.3, though--seems to have helped a lot.
skywalker said:
Looking for devices matching vendor ID=1193 and product ID=8717
Sounds like skywalker figured out what this was from, but for reference, that's the error that the Canon CanoScan scanner driver throws up when it can't find a scanner (actually, in my experience, it sometimes seems to say that even when it can, and in the logs you can see it frequently "re acquiring" the scanner for no apparent reason.
These can be alieviated by either plugging in a scanner, or removing the button manager part of the driver. As skywalker said, though, they don't cause anything but a bloated log file--I've never heard of a crash related to Canon's driver.
When it's not cluttering up your logfile, I've got to admit they work pretty well--the scanner buttons function perfectly even under 10.3, including pass-through-to-printer copying.
