Installing from windows

Hi. I’ve been using version 15.1 on win10 with no problems.
I decided to upgrade to version 16.1. No matter how many times I download
Kodi and I install it (removing the previous download as I go), as soon as the logo disappears and I get the normal blue screen
with the main headings ( video, music settings etc). All the type on the screen is doubled
one red and the other cyan. about 20mm apart. Quite like the old 3D movies where
you wore the red and blue glasses. What am I doing wrong.