Need help with corrupt pg_statistic

I am using postgres 7.4.5, and have a corrupt pg_statistic.
Many commands cause the following error:
ERROR: invalid page header in block 10 of relation "pg_statistic"

I want to preserve my data if at all possible, I figured I would just
dump the database and reload it. I tried
pg_dump, but it gives me:
pg_dump: query to obtain list of data types failed: ERROR: invalid page header in block 11 of relation "pg_statistic"
even if I just try to dump a single table.

I tried postgres in single-user mode:
delete from pg_statistic
gives me the same error
drop table pg_statistic
gives me
ERROR: permission denied: "pg_statistic" is a system catalog

Is there any way to nuke pg_statistic (since its contents can be
recalculated anyway?)

Thanks,

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Kevin Seghetti: E-Mail: kts(at)tenetti(dot)org, HTTP: www.tenetti.org
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