fstab and mounting filesystems in 12.04

[Linda]

I have a fstab entry in 12.04 LTS

ip-address:/filename    mountpoint    nfs 
noauto,users,rw,hard,intr

Having this entry in the previous LTS version would allow 
any user to mount the network file system, however when a 
user tries to mount the file system with 12.04 they receive 
an error message telling them they must be root to mount the 
file system.
I checked the fstab man pages and it looked like users 
should be user so I changed this and rebooted but a regular 
user still can't mount the file system. Does anyone know 
what I need to change to get this working with 12.04. I 
really would like normal users to be able to mount and 
umount the nfs file systems.

        Thank you
          Linda