Obviously this is of interest to the ZopeLDAP developers, but it may also be of interest to DC (undo feature may be broken?). Yesterday, I downloaded and installed the ZopeLDAP (ZLDAPConnection, ZLDAPMethods) product (I also got and installed UserLDAP, but haven't messed with it yet). I created two connections to test out the ZopeLDAP product. I then created a filter method to test my connections. I realized I'd done something stupid, so I deleted the filter and the connections. I then created a new connection. When I went to create a new filter, the choices I was given for connection were, to my surprise, the connections I had deleted. The new connection was not listed. So I figured something didn't get cleaned up in the deletion process (but I do not claim to know the Zope internals). So I went to use the wonderful undo feature, and I undid things until before I had created my first connection. I then did the new connection/new filter step again. To my surprise, the old connections were *still* there in the connection listing for my filter creation, and again my new connection was not listed (I know because I used different names). So I decided to create a second and third connection, hoping that I would be able to at least access the third connection. Nope, didn't help. I still had the original two, and only the original two, connections listed. So I did a grep on every file in the zope tree looking for a reference to the IDs of the two old connections. To my surprise, they were indeed found in var/Data.fs, and nowhere else (other than the log). So this morning, I restored a backup of Data.fs from before I ever created the original two connections. Finally, the evil connections were gone.... I don't currently know enough about external methods to be able to troubleshoot this connection deletion problem myself (someday :), but I hope this information is helpful. On a positive note, after restoring the database, I tried making connections again (without deleting), and I was able to successfully query one of my LDAP servers (not sure what's up with the second, more important server). p.s., WRT "No Cross Posting", I apologize, I wasn't sure how else to both bring this to the attention of the ZopeLDAP developers and the DC folks. Suggestions for how to deal with this more appropriately are welcomed. Thanks.