After upgrading to 6.0.11826, Linux only runs for maybe a half hour before freezing. All I'm running is a router on kunbuntu. The connection dies and I find the VM frozen. At this point I have to power down the VM and start it over. This effectively makes PD6 worthless. I installed the latest tools to no avail. I have no choice but to try installing an older version and hope that doesn't break anything else.