yes, i have followed his advice as soon as he posted, but the output i got was : Screen 0: minimum 320 x 240, current 1680 x 1050, maximum 1680 x 1050 default connected 1680x1050+0+0 0mm x 0mm 1680x1050 50.0* 51.0 1600x1024 52.0 1440x900 53.0 1360x768 54.0 55.0 1280x1024 56.0 1280x960 57.0 1152x864 58.0 1024x768 59.0 960x600 60.0 960x540 61.0 840x525 62.0 63.0 800x600 64.0 65.0 800x512 66.0 720x450 67.0 700x525 68.0 680x384 69.0 70.0 640x512 71.0 640x480 72.0 73.0 576x432 74.0 512x384 75.0 400x300 76.0 320x240 77.0 Which seems to be normal? am i supposed to lower my resolution of the desktop, and then run the game ?