Hi, I just got a crash on Mac when using the latest VM. I attached the dump. This was a short session. I played a bit with a few Roassal visualizations, and then I started some coding in Nautilus, and the image crashed while typing the body of a method. I am on OS X, 10.11.6 (Mac OS X El Capitain). Here are the details of the VM: CoInterpreter VMMaker.oscog-eem.2188 uuid: ff4ca601-cd05-4792-ab0d-dcdf19975239 Apr 9 2017 StackToRegisterMappingCogit VMMaker.oscog-eem.2188 uuid: ff4ca601-cd05-4792-ab0d-dcdf19975239 Apr 9 2017 VM: 201704090811 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $ Date: Sun Apr 9 10:11:47 2017 +0200 $ Plugins: 201704090811 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $ Here is the image build was: 60464. Cheers, Doru -- www.tudorgirba.com www.feenk.com "Problem solving efficiency grows with the abstractness level of problem understanding."