On Fri, Jan 23, 2015 at 12:43:26PM +0000, dave nixon wrote: > Apparently I have Intel core 2 duo and am running snow leopard. That's at least 64-bit capable, though might be running 32-bit I guess. I've made a 32-bit build, which might be worth trying: http://survex.com/software/1.2.16/survex-macosx-1.2.16-i386.dmg Cheers, Olly