[CentOS] rpm problem after recent yum update

Thanks for the kind help.  It appears that if I add the following
option, --noscripts , when running rpm, then the problem went away. 
However, I don't know how to work this option into yum.  Specifically,
I am having problem updating/installing firefox.  The error message I
received is:

error: %post(firefox-1.0.4-1.4.1.centos4.i386) scriptlet failed, exit status 255

I am dumping the entire output as follows:

[pwzhangz at localhost dl]$ sudo yum install firefox
Setting up Install Process
Setting up Repos
kbs-CentOS-Extras         100% |=========================|  951 B    00:00
kbs-CentOS-Misc           100% |=========================|  951 B    00:00
update                    100% |=========================|  951 B    00:00
base                      100% |=========================| 1.1 kB    00:00
addons                    100% |=========================|  951 B    00:00
extras                    100% |=========================| 1.1 kB    00:00
Reading repository metadata in from local files
kbs-CentOS: ################################################## 1002/1002
kbs-CentOS: ################################################## 60/60
update    : ################################################## 142/142
base      : ################################################## 1404/1404
addons    : ################################################## 2/2
extras    : ################################################## 30/30
Resolving Dependencies
--> Populating transaction set with selected packages. Please wait.
---> Package firefox.i386 0:1.0.4-1.4.1.centos4 set to be updated
--> Running transaction check

Dependencies Resolved
Transaction Listing:
  Install: firefox.i386 0:1.0.4-1.4.1.centos4 - update
Total download size: 16 M
Is this ok [y/N]: y
Downloading Packages:
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
Installing: firefox 100 % done 1/1
error: %post(firefox-1.0.4-1.4.1.centos4.i386) scriptlet failed, exit status 255
Installed: firefox.i386 0:1.0.4-1.4.1.centos4
Complete!

(Thereafter, I was not able to start firefox.)

Thanks for the help again, this forum is unbelievable.


> - specifically, search here:
> http://groups-beta.google.com/group/linux.redhat.rpm
> 
> Zoran