I'm running a Raspberry Pi 3 and the official 7" touch screen. Problem is that some, not all, program windows open too big. For example, when I open the Arduino IDE the program window is too "long" . I can't get to the top menu line. Chrome has also opened so big that the top was off the screen. Couldn't even grab the top bar to drag it around.
Everything looks fine when I use the pi and a HDMI monitor. I've tried changing the resolution thru the preferences menu but no luck. Anyone have any ideas?