Hi, running chkconfig ntpd off as root should disable ntpd. If you just want to sync time, you can run ntptimeset -s (also as root) from a console.
By the way, please don't reply to a random message when posting to mailing lists. That messes up the threading. For example, your email shows up as a response to "Still Blue screen in Fedora" in a thread-aware email client.
HTH, Levin