When I updated to build 32408, my Windows 10 guest no longer uses the full resolution of my display. I am on an iMac with 2560 X 1440 displays. The largest resolution available in Windows 10 is 1920 X 1200. When I go into full screen mode with the Auto scale setting I get black bars on each side of the window. I did not get these yesterday. If I come out of full screen, the aspect ration of the window is locked and when I drag the lower right corner, I can't use the full width, only the height. I have rebooted both the guest and the host. I have reinstalled Parallels Tools and I have reset the virtual machine. Help!