unable to do su from user to become super user

[Damon Blom]

Hi
FreeBSD presario.com 7.0-CURRENT FreeBSD 7.0-CURRENT #7: Sun Oct  9 22:44:53 
PDT 2005     root at presario.com:/usr/obj/usr/src/sys/MYKERNEL  amd64
   I cannot go from user to super user.
  su: error while loading shared libraries: libpam.so.0: cannot open shared 
object file: No such file or directory
  In /usr/lib I added pointer from libpam.so.0 to libpam.so.3
      **** snip ***
-r--r--r--  1 root  wheel  2841092 Oct 10 07:28 libc.a
lrwxr-xr-x  1 root  wheel       14 Oct 10 07:28 libc.so -> /lib/libc.so.6
-r--r--r--  1 root  wheel  2967924 Oct 10 07:28 libc_p.a
-r--r--r--  1 root  wheel  3342666 Oct 10 07:28 libc_pic.a
-r--r--r--  1 root  wheel   388758 Oct 10 07:28 libc_r.a
lrwxr-xr-x  1 root  wheel       11 Oct 10 07:28 libc_r.so -> libc_r.so.6
-r--r--r--  1 root  wheel   129704 Aug 16 09:45 libc_r.so.5
-r--r--r--  1 root  wheel   130440 Oct 10 07:28 libc_r.so.6
-r--r--r--  1 root  wheel   404936 Oct 10 07:28 libc_r_p.a
   *** snip ***
-r--r--r--  1 root  wheel   233062 Oct 10 07:28 libpam.a
lrwxr-xr-x  1 root  wheel       11 Oct 10 07:28 libpam.so -> libpam.so.3
lrwxr-xr-x  1 root  wheel       11 Oct 10 10:50 libpam.so.0 -> libpam.so.3
-r--r--r--  1 root  wheel    35544 Aug 16 09:45 libpam.so.2
-r--r--r--  1 root  wheel    35584 Oct 10 07:28 libpam.so.3
   *** snip ***
  rebuilt system (make buildworld buildkernel installkernel installworld) 
 no  help. 
 I had just finished doing portupgrade -a
  did pkgdb -F
 I usually just do xdm and use kde as user.
 system boots fine multiuser and I can login as root no problem. I just can't
login as user and become root with su
    still a newbie.
      Thank's so much
           Damon