I've stuck a version (5.8b4) of the cocoa based os-x squeak cog JIT based VM in my experimental folder. http://homepage.mac.com/johnmci/.Public/experimental/Squeak%205.8b4.app.zip I spent the last two days becoming very familiar with Open/GL and rewrote the display logic to use Open/GL. I am still doing some further optimization, but people should test this version and let me know what they find. Other Fixes. I think the control-arrow keys should work now, someone test this and let me know. -- =========================================================================== John M. McIntosh <johnmci@smalltalkconsulting.com> Twitter: squeaker68882 Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com ===========================================================================