[MonetDB-users] protocol violation: unexpected line in data block

Hi when execute sql : select * from td_ind_security_held where id = 1560000 in DbVisualizer 7.1.1,it appears "protocol violation: unexpected line in data block" td_ind_security_held has 30 columns(1 int,6 varchar, others decimal) and about 7 million rows. I'm working with MonetDB Server v5.22.3, based on kernel 1.40.3 (downloaded msi from sourceforge) over Windows XP SP3.