Hi there! After purchasing a new license for OSX, I downloaded a number of the great collection of stencils posted by other members and arranged it under a sub-files structure.
Now, when switching between three or more sub-files the app suddenly shut down without warning. So, I turned to save my work before looking for another texture to add in order to prevent a loss.
I usually work at 1200 by 1700 px at 150 or 300 dpi in an Intel Core 2 Duo Mac mini with 2 Gb of memory.
May be the arranged tree became too much for the system to manage?