periodic mouse freezes/jumps on Hoary

[David Feldman]

I've just installed Hoary on a Dell Inspiron 4000 (pentium 3 610MHz 
laptop), and I'm excited to see a lot of terrific additions since 
Warty. One problem, though: The mouse cursors will periodically and 
temporarily freeze when I'm moving it around, just for a moment, and 
then resume its course. It happens frequently enough to be a serious 
issue, and happens whether I'm using the built-in touchpad or a USB 
external mouse.

Any idea what's going on?

Thanks,
--Dave