Yes, keep in mind that the FSI LM-1760W is higher resolution than your other monitor, 1366x768 vs 1280x768. What this means is that when you are showing 720p video full screen on the 17" FSI monitor you are NOT showing it in pixel to pixel mode, but rather scaling it up a bit. However, on your other monitor 720P video will always be shown pixel for pixel. When monitoring 720P video on any FSI display with a higher native resolution than your 720P source you can go to 1:1 pixel mapping mode to achieve a much sharper image.
To turn on 1:1 pixel mapping simply set the pixel mapping feature to a function key and use that to toggle pixel mapping on/off.
Also, keep in mind that the default and/or selected sharpness setting may be different between varying monitors. You can increase or decrease the sharpness setting on the FSI monitor from the Video Menu using the 'Sharpness Level' menu item.