When an external monitor is connected to the Mission Specialist Operator Control Console (OCC), the main monitor may flash like it is out of sync. This is caused by an issue with resolution in the two monitors.
To fix this, go to the monitor settings and change the resolution from “1920x1080i” to “1920×1080”.
Note that this issue will occur with the lower resolutions as well; if the type ends in an “i” (indicating interlaced), these resolutions can be fixed in the same manner.