Vale, acabo de encontrar esto en una review de mi cacharro(pido disculpas por el idioma):
"The H30 is an SVGA, 800x600 resolution projector, which is native 4:3 aspect ratio. However you have the option to run the H30 as a native 16:9 projector in 800x450 as well, and set it up to fill a 16:9 screen. Set up this way, a 4:3 image can be centered in the middle of the 16:9 screen frame with black bars on either side. On the other hand, if you are using a 4:3 screen, you can opt to view 4:3 material in full 800x600 resolution. Accordingly, 16:9 material will be viewed with black bars at top and bottom."
O sea, lo que me temía. En modo nativo 16:9 trabaja internamente a 800x450. Vamos, que ni de coña voy a ganar nada con este setup.