I don't know if you're using nvidia, but I am and had the same problem, and apparently others have had it too. When scrolling or even just moving point by holding ctrl-f, CPU spikes to 100%. For me it's X that is spiked to 100%, though, not emacs.
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-180/+bug/651297 http://www.nvnews.net/vbulletin/showthread.php?t=157769 For now I'm just using emacs-lucid which does not have this problem. I'm using squeeze and the proprietary nvidia driver that came with it, which is surely very old by now. -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org