The following bug has been logged online:
Bug reference: 4502
Logged by: Peter Mengaziol
Email address: pmengaziol(at)electrainfo(dot)com
PostgreSQL version: EDB 8.3.0.12
Operating system: Mac OS X 10.4.11
Description: pgAdmin Display Refresh Rate cannot be less that 7 secs
Details:
Postgres Studio (pgAdmin III V.1.8.3-EDB (rev 7181))
I cannot set the Admin Display Refresh Rate cannot be less that 7 secs. I
was able to set it to 1 sec before.