When I use the native resolution 1920 x 1080. It doesn't fit the screen and I have to use resize my desktop in nvidia control panel. Also when I connect with vga 1920 x 1080 fits the screen but when it boots the res changes many times during the boot into windows 7.
For your Spectre X240BC-FHD, according to User Manual pages 25 and 26, you should enable the HDMI PC function so that the HDTV will not use any scaling to give you a one-to-one pixel mapping. Therefore, try this adjustment first of everything else. And of course, you must have 1920x1080 at 60Hz set in the card's driver as well.
See the 2 red arrows in pics 1 and 2 below taken from the Manual.
Edited by windfire - 5/20/11 at 7:20pm