I have a MBP 15" which I use at work with a Thunderbolt display (as main monitor) bought sometimes in 2012 (it's not a retina display). At home I simply use the laptop without the monitor.. Before I upgraded to the latest version of Parallels as of yesterday (Oct 7), i.e. 11.0.2 (31348), when I used the laptop without the monitor, the resolution on my Win 7 64 bit guest was set to 1680x1050 which was the expected behavior. After the upgrade, parallels switches the resolution to 2560x1600 in windows 7, again, when I use just the laptop, after having used the Thunderbolt display (turned my laptop off, went home, open the laptop again). I run Yosemite. On the OSX side, under Display settings I am using the option between Default and More Space. Under the VM options, the Graphics settings for Retina display is set to Scaled. How can I make parallels to have the same behaviour as it had in the previous release such that it uses the proper resolution for the main display? Thank you!