Okay.
I was thinking that perhaps you had another instance of ldap running.
Here are some tips that will help.
1) What's in the installation log? /tmp/ & /var/log/zimbra.log Especially look for any errors before starting ldap
2) What's your hosts file look like?
3) I noticed that you had uninstalled it. Did you use ./install.sh -u ? I think perhaps LDAP didn't stop when you uninstalled it. Trust me that I know from experence that you can delete a file while it's running. Just ask marc
