Dynamic Distribution Groups Do Not Show UP in GAL

I am running Exchange 2007. I have several dynamic distribution groups, and none of them show up in our Global Address list. I have checked the purported search property in ADSI EDIT and it is correct, it lists "(objectCategory=msExchDynamicDistributionList)".

I cannot find them in active directory users and computers. They do show up if I do a search in Exchange Management Console or Shell

I also checked the DDL itself and its properties link it to the correct address list.

Of note, all non dynamic Distribution lists show up right away ion the GAL.