Just a quick update.. The content of the .xinputrc file was a single line
run_im xim
I think that this may have something to do with the problem.
.xinputrc is generated by language settings when you change the input type. in 16.10 when I set the input type to none the new .xinputrc file contains
run_im none
And the background is still OK in gedit & calc etc
So the problem is the content of the .xinputrc file and not the presence of the file.
Just a quick update..
The content of the .xinputrc file was a single line
run_im xim
I think that this may have something to do with the problem.
.xinputrc is generated by language settings when you change the input type.
in 16.10 when I set the input type to none the new .xinputrc file contains
run_im none
And the background is still OK in gedit & calc etc
So the problem is the content of the .xinputrc file and not the presence of the file.