ZBrushCentral

Solo button issue and 'internal error' message

I’m having a couple problems with zbrush 4r2 at the moment. I have this buggy problem with the solo subtool button. When I have more than one tool on the screen and I start rotating around the sculpt, the solo button will automatically come on thus hiding all my non-selected subtools. It does it about every other time I start rotating. It only seems to do this on my desktop pc. My laptop pc is fine.
My other problem is when importing objs and ztl files I often get this message and then zbrush just automatically closes. Once again this problem seems isolated to my desktop. Laptop runs fine…

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