bug in join?

We are running the 7.2b4 beta server.

This join worked last week and today it gets and error:

select * from b, dwhere b.address = d.address;

It now fails with the following error:
ERROR:  join_selectivity: bad value -0.121693

all that is in the pgsql.log file is the same error.

I am working on a reproduction I can give you, but in the mean time I was
wondering if this is a current problem with the server or me?

Thanks,

-- 
Laurette Cisneros
(510) 420-3137
NextBus Information Systems, Inc.
www.nextbus.com
Passenger Information Everywhere