high cpu load caused by polkit-gnome-au

Binary package hint: policykit-1-gnome

top - 07:19:06 up 13:41, 3 users, load average: 1.48, 1.46, 1.29
Tasks: 198 total, 2 running, 195 sleeping, 0 stopped, 1 zombie
Cpu(s): 51.2%us, 1.7%sy, 10.5%ni, 34.4%id, 2.0%wa, 0.0%hi, 0.3%si, 0.0%st
Mem: 4058624k total, 3965128k used, 93496k free, 138744k buffers
Swap: 4193276k total, 156k used, 4193120k free, 2462472k cached

  PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
 2287 mjoyner 20 0 146m 6480 5100 R 100 0.2 648:27.17 polkit-gnome-au
 1511 mjoyner 30 10 900m 288m 14m S 20 7.3 187:39.29 java
 7268 mjoyner 20 0 797m 82m 28m S 10 2.1 67:35.38 ktorrent

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: policykit-1-gnome 0.99-1ubuntu4
ProcVersionSignature: Ubuntu 2.6.38-9.43-generic 2.6.38.4
Uname: Linux 2.6.38-9-generic x86_64
NonfreeKernelModules: fglrx
Architecture: amd64
Date: Tue May 24 07:18:07 2011
ExecutablePath: /usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: policykit-1-gnome
UpgradeStatus: Upgraded to natty on 2011-04-30 (24 days ago)
XsessionErrors:
 (gnome-panel:7243): GConf-WARNING **: Directory `/apps/panel/toplevels/bottom_panel_screen1/screen' was not being monitored by GConfClient 0xa76980
 (gnome-panel:7243): GConf-WARNING **: Directory `/apps/panel/toplevels/top_panel_screen1/screen' was not being monitored by GConfClient 0xa76980