90% of the time my VMware looks like this( Both clients). I'v never seen Bus Error (Core Dumped) before but if FahMon says its working I would leave it alone. If I noticed it early (first 10%) and my ppd was low I would restart it and if that did not fix it I would delete it and a new WU. It's to bad these VMware WUs take so long, It takes forever to know if its workin, Every time I'v had a problem with a WU its over 75% done

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