I have installed the screen and updated my raspbian using apt-get, etc. The touch screen would then respond to touch. I ahd to install another application to get an on-screen keyboard. I then expected to be able to do things like zooming in and out using touch gestures, but nothing.
Then I tried booting from a new Raspbian SD card (the latest download following the instructions "N.B. Will require the latest version of Raspbian OS to operate correctly.") and the touch screen no longer responds to any touch.
So, what should I expect and what do I need to do?
What else do I need to install?
From the blurb I read, I expected the touchscreen to be fully supported and work "out of the box".