Compressed Indexes fail

If we use the default compressed indexes, we get the following error:

ORA-00600: internal error code, arguments: [12421], [], [], [], [], [], [], []
Current SQL statement for this session:
select count(*) from f_event where eventDate ='22-jan-2001' and eventtype_key='1'

If we alter the indexes to NOCOMPRESS everything works fine.

Is this a known problem/bug?

Oracle 8.1.7 / Solaris 8

Thanks

-- 
Mark Jenkins
Professional Computer Services, Inc.
Beloit, WI
markj_at_pcsincnet.com
http://www.pcsincnet.com/