We are running XD7.6 on VMware 5.5 using vDGA. We have a K2 Grid card installed on the ESX host and it is passing through to 2 VMs. When I connect to the VMs via XenDesktop, the display will intermittently freeze during the session. I can sometimes run for days with no issue, other times only a few minutes. There are no events logged on the VM that refer to any failures. If I disconnect the desktop session when it hangs, I can always reconnect and it picks up right where I left off. I am running Windows 7 on my XenDesktops and using the NVIDIA x64 driver 347.52. Has anyone else seen this issue?