ZBrushCentral

Unable to work properly!

Hi,I’m using Zbrush 4R5 and each time I launch it.
It works properly about 30 minutes and this message appears:

then the program closes… wish someone could help me
my pc specs:
core2duo 2.66 Ghz , 4 gb ram , n450 gts 1 gb

Greetings
Paul

No image, no help. You could try updating to R6P2.