This is usually in relation to screen resolution settings and in some cases (particularly with older games), you can simply adjust these settings to get the game working correctly as follows:
1) Right click on the game icon, choose 'Properties'.
2) Then go to the 'Compatibility' tab, scroll down and check the box of 'Run in 640 x 480 screen resolution'.
3) Click on 'Apply' and try to play the game again.
Should this not improve the game, please contact our Customer Support team.