Try seeing if your video card supports the screen resolution of 1280 x 960 that you are attempting:
(from the Blitz command help):
(from the Blitz command help):
; ; CountGFXModes()/GfxModeWidth/GfxModeHeight/GfxModeDepth example intModes=CountGfxModes() Print "There are " + intModes + " graphic modes available:" ; Display all modes including width, height, and color depth For t = 1 To intModes Print "Mode " + t + " Width"+GfxModeWidth(t)+" Height=" + GfxModeHeight(t) + " Height=" + GfxModeDepth(t) Next MouseWait() End