New Lenovo laptop P70 with 3 monitors using UGA-3000 USB 3 connections after screen saver, no refresh of windows.
Windows 7 Enterprise 64 bit (cannot disable screen saver)
Intel i7-6820 HQ @ 2.70GHz
No docking station - Plugables connected direct to 3 X USB3 ports on the laptop
DisplayLink Manager 8.2.2152.0
NVIDIA Quadro M600M, driver 354.25
After screen saver/power off of monitors, which is controlled by corporate IT, the windows come back to their last known positions/screens, however when typing, selecting (email) or scrolling in the window, no change is seen. Grabbing the window and dragging even a very short distance will force the window to refresh and then the typing/selection/change is seen.
A reboot will clear the trouble.