I've reported the bug #675672 to gnome developpers. Here is the link https://bugzilla.gnome.org/show_bug.cgi?id=675672
** Bug watch added: GNOME Bug Tracker #675672 https://bugzilla.gnome.org/show_bug.cgi?id=675672 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/996392 Title: Abnormal HD activities when modifying keyboard sensitivities Status in “gnome-control-center” package in Ubuntu: Confirmed Bug description: To reproduce the bug : 1- open gnome-control-center 2- go to the keyboard section 3- Try to change one of the parameter. You will ear that something is written on the HD as long as you move the cursor. The same bug can be found in the mouse section of gnome-control-center but not in the sound section. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: gnome-control-center 1:3.4.1-0ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-24.37-generic-pae 3.2.14 Uname: Linux 3.2.0-24-generic-pae i686 NonfreeKernelModules: nvidia ApportVersion: 2.0.1-0ubuntu7 Architecture: i386 Date: Tue May 8 09:51:13 2012 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120328) SourcePackage: gnome-control-center UpgradeStatus: No upgrade log present (probably fresh install) usr_lib_gnome-control-center: activity-log-manager-control-center 0.9.4-0ubuntu3 deja-dup 22.0-0ubuntu2 gnome-bluetooth 3.2.2-0ubuntu5 indicator-datetime 0.3.94-0ubuntu2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/996392/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp