The first thing you note -- the mouse pausing for a second -- also happened to me on Ubuntu. I turned off one of the services...I can't remember which, but I think it was CPU Scaling (or something similar). It immediately fixed the problem. Jonathan Osborne jwo at umn.edu Troy wrote on 12/19/2007 13.36 > I'm running Ubuntu 7.10 on a HP Pavilion ze4125 laptop (AMD Athlon XP > 1600+ [1.4Ghz] with 1 gig of RAM. However, I've experienced the issues > described below with other versions of Ubuntu, and other distributions. > > Current symptoms: > Mouse will jerk when moving - moves fine for awhile, then all of a > sudden quickly stops for a brief second. > CPU usage showing 100% spikes frequently, and I'm only running Top in > Terminal, Firefox, and System Monitor > CPU temperature ranges from 40c-60c. Is this normal? > Fan on laptop running 99% of the time. > Overall slow response.