when i take pictures with my digital camera they are in the 4:3 ratio, however, my monitor has a natural resolution of 1680x1050, so when i try to use pictures i have taken as wallpapers they either stretch horizontally, or if i centre or tile them they zoom far too close and cut off most of the picture. is there any way to maintain the picture aspect ratio and have them as big as possible to use as wallpapers with my monitor, without having to cut off or zoom into the pictures, and just fill in the gaps in the side of the monitor? thanks