I want to make ZB 3.5r2 start up with a blank document instead of with a dang Sphere loaded. How can I change that?
It appears that StartupDocument.zbr is getting overwritten by Lightbox at the moment. I’ll open a ticket. 
-K
Thanks.
Take a look at this thread here.
http://www.zbrushcentral.com/zbc/showthread.php?t=75134
cheers djart
Djart, thanks for the clue! 