chown <ldap user> <dir>, permission denied

[djekels]

when I try to execute chown as myself. (also an ldap user)

$ chown user1 xprobe2-0.3/
chown: changing ownership of `xprobe2-0.3/': Operation not permitted

however as root the above works fine.

any ideas what cuased this?

[Outlaw]

An eplanation of Why only root can chown files