Autovac _scale_ settings not changed by SIGHUP?

Perhaps I misunderstand something here.

Autovac demon is configged on and working but was using standard
settings which are commented out in postgresql.conf.

The context field of pg_settings view suggests that the scale factor
values and other autovac settings can be changed with SIGHUP.

Uncommenting the settings in postgresql.conf and  giving the new
values, then followed by a pg_reload_conf() call however and I see no
change in the settings.

Also did pg_ctl reload for good measure and nothing changed.

Thanks

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Jerry Sievers   732 365-2844 (work)     Production Database Administrator
                305 321-1144 (mobil    WWW E-Commerce Consultant