Hi Don,
Unfortunately still no luck mate.
See my image attached with the additional folder created and the contents of the bgl compiler dumped in it, the the line changed in the ini file? Is that what you meant?
I did a compile and got the error with the modified path file. When I checked the ini file afterwards, it had reverted to the original path. Even tried deleting the ini file and starting again, and same error, and same path comes back in the ini file.
I did manage to get a fence to show in the test file when I moved the textures into my texture folder in my new scenery. I need to test if this theory works over uneven ground, as I tried it on a runway which was level.