Gnome consume 100% cpu FreeBSD_9.0

[Shiv. NK]

Dear Community Members,

It is FreeBSD 9.0 release, system was functioning normal for many months
now.  Today I enabled Xserver in “/etc/rc.conf”

gdm_enable="YES"
gnome_enable="YES

After 5 minutes of booting some process start killing the cpu, than
eventually with in 7 minutes, processor get stack to 99.9%

The load average was terribly big that was 57,34,23. Whereas it never hist
above 1.x

I tried to look for the process by typing “htop” output is filled by the
following command.

2239 mark     122   0  192M 15916     0 S  0.0  0.8  0:00.19
/usr/local/bin/gpk-update-icon
 2238 mark     126   0  192M 15824     0 S  0.0  0.8  0:00.25
/usr/local/bin/gpk-update-icon
 2237 mark    122   0  192M 15864     0 S  0.0  0.8  0:00.21
/usr/local/bin/gpk-update-icon
 2236 mark    127   0  192M 15848     0 S  0.0  0.8  0:00.21
/usr/local/bin/gpk-update-icon

It seems to related gnome but I am unable to understand what is that. I
need help

Thanks / Regards