This is in the context of pgAdmin III v1.2.2 on Windows XP SP2.
When I open a window to edit the properties of an existing rule, and then edit the text
under the Definition tab, the OK button does not activate, and so my edit cannot be saved.
As a workaround, I have to switch to the Properties tab, then change something there, and
then change that back, just so I can click the OK button.
Gene