www.gamespot.com/venetica/forum/window-mode-for-those-that-have-issues-like-i-do-53354129/
or
you'll want to open up settings-user.ini in your my documents \ venetica directory
with notepad, search for fullscreen = true and change that to fullscreen = false and save,
next time you start venetica it will be in window mode!
that have fixt my prob i had