Background Images from NAS blurry???

Just started using this skin yesterday and so far love the look and the ability to customize. Which leads me to my question. For my movies and TV shows I have the device pulling from my NAS for the background image. Looks great. For weather and some of the other menus, I have the device pulling from my NAS as well however the images dont look as sharp as my movies and TV shows. They are somewhat blurry. I went on the web and downloaded some shareable wallpapers and such (HD images) but still and not as focused. Is it the image resolution? Not sure why. Anyways thanks for the help…