[CentOS] Troubles with starting CentOS beta 5

Hi list
I'm new here, but I've been using CentOS for about 2 years.
I had some problems today, there was a blackout and I couldn't poweroff my
machine on the right way, when I turn on  the machine again everything
when right until the dialogo Activating swap/fstab. the pc freezed there
and didn't go on,
my question is,what was going on and how can I resolve that without
reinstalling the pc?

forgive me any bad writing, I'm not an english speaker.
thanks for any help you can give me.
manny
-- 

Se puede engañar a parte del pueblo todo el tiempo,
y a todo el pueblo parte del tiempo,
lo que no se puede es....
ENGAÑAR A TODO EL PUEBLO TODO EL TIEMPO....Abraham Lincoln.

USE LINUX NO SE DEJE ENGAÑAR
                    (@ @)
   |------------o00o-(_)-o00o-----------|
   |   Manuel Enrique Chávez Manzano    |
   |       manuel864 at gmail.com          |
   |      manny at jagua.cfg.sld.cu        |
   |         GNU/LINUX User             |
   |            #424754                 |
   |                                    |
   |-----------------------ooo----------|