mount sambashare with non-root-user

Hello, I want to mount a samba-share in my linux-box but don't want do this as root. I put an entry in my /etc/fstab like this: "//smbserver/share /mnt smbfs username=abc,password=abc,uid=500,gid=100,rw,noauto,users,exec 0 0" ... and I am able to mount this share as root and root is not the owner of the files. BUT when I try to mount this as an user I get the error message: "cannot mount on /mnt: operation is not allowed". Does anybody know a way to do this with a standard user? Thanks and regards Ruediger