The following bug has been logged online:
Bug reference:      4605
Logged by:          Art Lembo
Email address:      [email protected]
PostgreSQL version: 8.3.5
Operating system:   Windows XP
Description:        Role Privileges don't show up in PGAdmin
Details:
This used to work in previous versions.  When I create a new Group Role,
that group is not shown as one of the Role Privileges in the Table
Properties using PGAdmin.  I have to revert to using SQL to create
privileges.
thanks,
art
p.s. just started using PostGRES - I love it!