https://bugs.winehq.org/show_bug.cgi?id=47837
--- Comment #4 from m0rvj johnpgoodman@gmail.com --- Tried with LIBGL_ALWAYS_SOFTWARE=1 and it was worse... I'm on a macbook pro late 2011 running kubuntu 19.04 with wine 4.17 and integrated graphics only. I'm so grateful for help with this. N.b. it is possible to build quite a collection of free books just from the store at logos.com and selecting price low to high. They also do a free book of the month.