right click on TR1 desktop logo -properties-open file location, in the DOSBOX folder rename Glide2x.dll to Glide2x_.dll Google ''zeckensack'', on the 2nd line, click on download 'here'' after install, in your start menu, go to glide wrapper - configurator, use global settings, try high res, 60hz, set resolution limit, apply, ok All credits to zeckensack anddd ENJOY the game ! (also works for steam)