text: That sounds suspiciously like either:\n- the monitor lead is not firmly attached, or\n- the display settings are incorrect - too few colours...\n\nto change/check the display settings, right click anywhere in the desktop, select properties, click the settings tab.\nColours is down on the left.  True color (32-bit) is the best.  Depending on the graphics card, you might need to reduce the pixel setting on the right.\n\nHope one of these sorts it!