I had no noticeable problems prior to the update today. But immediately after these things below are not working. I do not know if it is display fusion as I do not see where I can turn off DF's control of the taskbars to Windows and therefore I do not know if this isn't a MS probem. However this is the only system were I have DF running and the other boxes have no problems with the taskbar under 1607.

1. Right clicking on Skype (full standalone) should bring up a menu to close without logging out. But the menu will not display.

2. The Notification icon tells me I have 6 new messages but left clicking it does nothing and I can't read the messages.

3. Windows Store icon (installed by MS) does not allow a right click to unpin it. I was able to unpin it from the other boxes.

"Don't change the Aero color." FYI. I use classic Shell, on this and all my other Win 10 1607 installed. This is the only one I am having problems with the Task Bar and it is not the only multiple monitor setup. It is the only one I have DF installed on.

Rolled back to 1511 and all is stable. I am not sure if it was DF or 1607. There were a couple of 1607 anomalies in the upgrade. It may have been because of DF as it is the only difference between the other ones I run here, or something else, but for now I will stay on 1511. With the instability of Windows at this point I am seriously considering moving to Linux.