Hi! I downloaded the prebuilt CogVM from http://www.mirandabanda.org/files/Cog/VM/VM.r2310/ for Windows and found that 0.0 has strange behavior: 0.0 negative. "true" 0.0 < 0. "true" 0.0 as: WordArray. "a WordArray(0 0)" while in SqueakVM 0.0 negative. " false" 0.0 < 0. "false" 0.0 as: WordArray. "a WordArray(0 0)" Levente