Cannot Drop Schema

There is a schema we created and has been in use for several months that
now seems to have some objects that cannot be dropped. When I attempt to
drop a suspect table in this schema, the process just runs, as though it
is being blocked by an active DML process, but this is even after a
server restart.

I am a complete PostgreSQL novice DBA, so I'm uncertain where to look
for the reason why. Any help would be greatly appreciated!

Steve Hays | A c x i o m Direct
615-850-2889 office | 615-260-1575 mobile | 615-399-9867 fax
822 Airpark Center Dr | Nashville, TN 37217 | www.acxiom.com
<http://www.acxiom.com>
_____________________________________________________
ACXIOM(r) We Make Information IntelligentTM

***************************************************************************
The information contained in this communication is confidential, is
intended only for the use of the recipient named above, and may be legally
privileged.

If the reader of this message is not the intended recipient, you are
hereby notified that any dissemination, distribution or copying of this
communication is strictly prohibited.

If you have received this communication in error, please resend this
communication to the sender and delete the original message or any copy
of it from your computer system.

Thank You.
****************************************************************************