Hi Peter,
I don't have one but can you start here please:
https://wiki.ubuntu.com/Touchscreen
Have you done a full system update?, start with Welcome update function and look at "Fixes":
Hi Peter,
I don't have one but can you start here please:
https://wiki.ubuntu.com/Touchscreen
Have you done a full system update?, start with Welcome update function and look at "Fixes":