After completing the AU I am having problems with a secondary monitor on 1 of my Dell workstations. The 2nd monitor is connected using an HP USB Graphics Adapter. This monitor had been set up to mirror the monitor on the workstation. After the AU both monitors work but only in the extended configuration. Either monitor can be selected as the primary monitor but there is no longer an option to set the displays to mirror each other. We have tried disconnecting the secondary monitor and reconnecting it with no changes.