Hmmm... I'm getting some weird artifacts in the new version on my 2010 iMac with this little canvas toy: http://www.apejet.org/aaron/code/sparks/ http://www.ape

Hmmm... I'm getting some weird artifacts in the new version on my 2010 iMac with this little canvas toy: http://www.apejet.org/aaron/code/sparks/ http://www.apejet.org/aaron/code/sparks/