Problem with '.' in search attributes...

["Titus J. Anderson" <titus.anderson@louisville.edu>]

I'm having a problem searching for attribute values that contain periods.
For example, say I have an entry like the following in my database:

dn: userid=jhdoe001, o=organization, c=us
userid: jhdoe001
mail: jhdoe001@site.org
mail: john.doe@site.org
mail: j.doe@site.org

The following work:
$ ldapsearch -b 'o=organization, c=us' '(userid=jhdoe001)'
$ ldapsearch -b 'o=organization, c=us' '(mail=john.doe@site.org)'
$ ldapsearch -b 'o=organization, c=us' '(mail=john.*)'
$ ldapsearch -b 'o=organization, c=us' '(mail=j.*)'

However, these don't:
$ ldapsearch -b 'o=organization, c=us' '(mail=jhdoe001*)'
$ ldapsearch -b 'o=organization, c=us' '(mail=john.doe*)'
$ ldapsearch -b 'o=organization, c=us' '(mail=j.doe*)'

I've looked in the documentation, bug lists, and scanned through some of the
mail archives and haven't been able to find anything like this.  Does anyone
have any idea why this is happening?  I am using OpenLDAP 1.2.7.
-- 
Titus Anderson                  System Programmer
titus.anderson@louisville.edu   Information Technology
(502) 852-8898                  University of Louisville