Apologies if this is not new, and please direct me to the appropriate message (or forum). I recently wrote a small Game Of Life program running in Pharo V1.2.1 which shows a glider changing shape (and hence position) as the iterations are performed. However, same code running in V1.4 (also in V2) only displays the *final* glider position. This is on Mac Lion. Putting in code to stop execution midway through the iterations leaves the correct glider shape and position displayed (for the point the iterations were stopped), so code seems to be executing ok ... just not continuously displaying. It appears as though display is being disabled until code execution ends?? Any suggestions how to restore the visible progression of the glider as the code executes? Tnx, Josh -- View this message in context: http://forum.world.st/Display-issue-v1-4-V2-vs-V1-2-1-tp4643069.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.