[CentOS] pc speaker mess

I wanted to enable my pc speaker and ref.
http://www.centos.org/modules/newbb/viewtopic.php?topic_id=855 this should work:
 /sbin/modprobe pcspkr

and then it worked!!! a little too much I might add, I thought the fire alarm went
off ;)

a  /sbin/modprobe -r pcspkr helped a little, it stopped beeping and just gave one
long sound. I couldnt take it anymore so I rebooted it to make it stop.

Is this a bug ??

It is a CentOS 4.2 updated last time just before 4.3 was released.

best regards
Ulrik