OBSOLETE: X2Go is no longer available for Ranger connections.
(FOOTNOTE: Most Microsoft Surface Pro, and a few Win10, users have reported that the default configuration causes resolution problems resulting in "big" windows. To solve this problem: From the original X2Go screen find the "Session" tab in the upper left toolbar area. In the drop down menu select "Session Management", pick the session you've set up (probably called "ranger") and edit the "Session preferences". You're looking to select the tab labeled "Input/Output". On the "Input/Output" page is an option "Set display DPI". For some reason on the Pro it gets a ridiculous value. Simply uncheck that option.)