zbrush3.1 crash and crash

[piman_fall]

Hi.
When i use Projection master and when i try to pic up object(after z painting) Zbrush 3.1 crash.
I layout uv corectlly.

and this problem happens only for some objects. :cry:

[iImagine]

Whatever you do, don't use Cntrl-S to save. Go through the tool menu.