Didier Verna <verna(a)inf.enst.fr&gt; writes: Hi Karl, as you seem to get an above average number of crashes, could you build _with_ error-checking/debug and see if you get crashes again? Yes, I know everything gets even slower, but maybe it helps in tracking the bugs sooner. FWIW I don't think that this one is necessarily related to Martin's byte-code mega-patch, but he also rewrote the hashtable implementation:-) Didier, do you have a backtrace for your crahshes? Gunnar -- Gunnar Evermann Speech, Vision & Robotics Group Engineering Department Cambridge University