What size is your TFT monitor?
I think the problem will be that the game is set at a resolution that is too high for the TFT to display. Due to the way TFTs work, they have a native resolution where everything looks clearest (1024 x 768 for 15", 1280 x 1024 for 17") but cannot display outputs greater than this native resolution. Try turning it down on the game. It will probably be in the video/graphics section of the options.