As I was using this brush the program would seem to freeze after a mouse up. Apparently there is some redrawing or re-calculation after a mouse up.
Zooming causes the same problem.
I noticed the above slowness with even a third of the number of J's in the scene.
I'm concerned because this doesn't look like a complex scene (to me at least). Here is the file:
http://www.joelcardinal.com/tmp/scatterSlow.zip
Pentium 4 2.8Ghz, 3GB RAM, WinXP hm SPK3, Intel onboard graphics, ASP6
