Displaying overlapping windows from a client device. Windows are displayed at a client device with a first window overlapping a second window on a single display. The first window is a current window. The current window is based on front to back ordering of windows displayed at the client device. Pixels in a region of the first window are captured and sent to a display server. At the display server, the first window is displayed on a first display region. The second window becomes the current window, resulting in capturing and sending pixels in a region of the second window to the display server. At the display server, the second window is displayed on a second display region. At the display server, the first and second windows are displayed in a non-overlapping fashion by displaying the first window and the second window on separate display regions.