Ok, here's some more on this. The disk activity is occuring on / and /home, but _not_ on /boot. (These are standard ext3 partitions on a standard FC 1 machine, / and /boot are on one drive, /home on the other.) The continuous disk activity consists of writes (no reads) and is very regular, at exactly 0.40 w/s (according to iostat) -- which looks like a daemon doing something every 2.5 seconds. Does anyone have any idea what part of GNOME this could be? (What's the easiest way to find the files and processes invovlved?) Danny. ---------------------------------------------------------- http://dannyreviews.com/ - over seven hundred book reviews http://danny.oz.au/ - civil liberties, travel tales, blog ----------------------------------------------------------